14 best compression tube nuts

Compression tube nuts are essential components in compression fittings, which are widely used in various industries such as hydraulics, pneumatics, plumbing, and industrial applications. These fittings provide a reliable way to connect tubes or pipes, ensuring a secure and leak-free connection.

Here are some key characteristics and information about compression tube nuts:

  1. Function: Compression tube nuts play a crucial role in compression fittings by securing and sealing the connection between a tube or pipe and the fitting body. They are responsible for compressing the ferrule (also known as a compression ring or olive) onto the tube to create a tight seal.

  2. Materials: Compression tube nuts are typically made from materials that are corrosion-resistant and suitable for the specific application. Common materials include brass, stainless steel, and various types of plastics. The choice of material depends on factors such as the type of fluid or gas being transported and environmental conditions.

  3. Sizes and Compatibility: Compression tube nuts come in various sizes and are designed to be compatible with tubes or pipes of specific dimensions. The size is usually specified in terms of tube OD (outside diameter) and thread size. It's essential to select the correct size and type of compression nut to ensure a proper fit and seal.

  4. Installation: Installing compression tube nuts involves assembling the compression fitting by sliding the nut, ferrule, and tube onto the fitting body. As the nut is tightened onto the fitting body, it compresses the ferrule, which then tightly grips the tube, creating a secure and leak-resistant connection.

  5. Applications: Compression fittings, including compression tube nuts, are commonly used in a wide range of applications, including plumbing systems, fluid transfer in industrial machinery, hydraulic systems, pneumatic systems, and instrumentation.

  6. Advantages: Compression fittings, when correctly installed, offer several advantages, including ease of assembly, reusability, and a strong and dependable seal. They are often preferred in situations where soldering or welding is not feasible or practical.

  7. Maintenance: Regular inspection and maintenance are essential to ensure the continued reliability of compression fittings. Over time, the ferrule and nut may wear, requiring replacement to maintain a leak-free connection.

  8. Leak Prevention: One of the primary purposes of compression tube nuts and fittings is to prevent leaks in fluid or gas systems. Proper installation and selection of high-quality components are crucial for leak prevention.

In summary, compression tube nuts are vital components of compression fittings used in various industrial and plumbing applications.They are designed to create secure and leak-free connections between tubes or pipes and are available in different materials and sizes to suit specific requirements. Proper installation and maintenance are essential to ensure the continued reliability of compression fittings.

Below you can find our editor's choice of the best compression tube nuts on the market
  

Litorange 6 PCS Heavy Duty Metals Brass Tube Fitting, Short SAE Flare Nut, 1/2" Tube OD (Pack of 6)

Litorange

Based on 16 reviews Check latest price

Product description

★ Material:



Heavy Duty Brass,strong and durable.

Operating temperatures range from -53 to 121 degrees C (-65 to 250 degrees F).





★ Specification:



1. Size: 1/2" Flare Nut.

2. Easy to disassemble no flaring tool required.

3. This fitting is made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.

4. This short flare nut connects to a flared tube or fitting, and is suitable for use with fuel and gas systems.

5. It is part of an assembly that resists mechanical pullout for a more secure connection, and can be assembled and reassembled without affecting the seal.

6. This short flare nut compression tube fitting is suitable for use with fuel and gas systems, plumbing, refrigeration, and vacuum applications.

7. When purchasing fittings, consider the application, as this will affect material type, shape, size, and required durability.





★ Package includes:



6 x 1/2" Flare Nut.

  • ★ 【Material】: Heavy Duty Brass,strong and durable. Short flare nut for connecting to a 1/2" OD tube or fitting.(OD: Outer Diameter).
  • ★ 【Firm And Durable】: Litorange Brass for corrosion resistance, high temperature ductility and low magnetic permeability.
  • ★ 【Function】: Resists mechanical pullout for a more secure connection.
  • ★ 【Tips】: For low to medium pressure operating environments with no excessive vibration or tube movement. Use with copper, brass, aluminum, or plastic tubing
  • ★ 【Package Include】: 6 PCS 1/2" Flare Nut, Net Weight: 42g/PCS. Comes with 1 year guarantee.

User questions & answers

Question: flare 90 degree l do u have them in stock
Answer: If the lead is in the paint then yes, if the coating is very hard for example a baked enamel coating, just swabbing the surface would not likely detect the lead. Destroying some of the coating would allow for more accurate test results, we always recommend contacting a lead abatement specialist in cases where the correct move is not clear!

LTWFITTING Value Pack 1/4-Inch OD Brass Compression Insert,Sleeve Ferrule,Nut (Pack of 125)

Ningbo Haishu HuaxinYicheng Trade Co., Ltd.

Based on 67 reviews Check latest price

Product description

Product Description

Durable and high standard brass compression fitting. Commonly used to connect lines for air, water, fuel, oil and inert gases in a quick and simple way.

Click "honest-fly" to choose the product you want in our shop.





Features

- Package Include: 50pcs sleeve ferrules, 25pcs nuts, 50pcs inserts.

- Material: Brass.

- Tube Size:1/4" OD.

- Net Weight: 5.8g/PC(nut), 0.8g/PC(sleeve ferrule), 0.8g/PC(insert).

- Type: Compression insert, sleeve ferrule and nut.





Important Note

Pay attention to the column of size and color, you could find a variety of product types and quantities for your choice.

The more you purchase the better price you get.





About Shipping

Great stock availability and fast dispatch are our core of business. We would make effort to process each order within 24 hours.

We are international seller, each item is required to be checked by two customs. China Post Air Mail and DHL eCommerce are our main carriers, it normally takes about 3-4 weeks to deliver to US.

If you do not receive the item during this period or have any problems, kindly contact us firstly.

You can rest assured we would handle each order no matter big or small as fast as we can.





About Us

We are honest seller, any problems please contact us before leaving your feedback. We will try our best to work out the issue with you.

These products come from our joint factory, its annual output is about 100,000,000 pcs. It is one of the main copperware makers in China with a 25 years’ experience in producing copperware and has already passed ISO 9001 quality guarantee system attestation, to ensure the long-term and stable quality of products .

  • Package Include: 50pcs sleeve ferrules, 25pcs nuts, 50pcs inserts.
  • Material: Brass.
  • Tube Size:1/4" OD.
  • Net Weight: 5.8g/PC(nut), 0.8g/PC(sleeve ferrule), 0.8g/PC(insert).
  • Type: Compression insert, sleeve ferrule and nut.

User questions & answers

Question: Do you have these in
Answer: Hello, Thanks for you interest our product. We not have 5/32 this size? Thanks! Robert
Question: what is the thread count
Answer: Not sure
Question: are these lead free and usable with water lines
Answer: I'm pretty sure that they are.
Question: How long are the inserts
Answer: it's about 0.5 inch.

LTWFITTING 1/8-Inch Brass Compression Sleeves Ferrule with 1/8-Inch Compression Nut, Brass Compression Fitting(Pack of 75)

Ningbo Haishu HuaxinYicheng Trade Co., Ltd.

Based on 9 reviews Check latest price

Product description

Product Description

Durable and high standard brass compression sleeves ferrule and nut. Commonly used to connect lines for air, water, fuel, oil and inert gases in a quick and simple way.

Click "honest-fly" to choose the product you want in our shop.





Features

- Package Include: 50pcs sleeves ferrule, 25pcs compression nut.

- Material: brass.

- Tube Size:1/8" OD.

- Net Weight: 0.4g/PC(sleeves ferrule), 3.6g/PC(nut).

- Type: Compression sleeves ferrule and nut.





Important Note

Pay attention to the column of size and color, you could find a variety of product types and quantities for your choice.

The more you purchase the better price you get.





About Shipping

Great stock availability and fast dispatch are our core of business. We would make effort to process each order within 24 hours.

We are international seller, each item is required to be checked by two customs. China Post Air Mail and DHL eCommerce are our main carriers, it normally takes about 2-3 weeks to deliver to USA.

If you do not receive the item during this period or have any problems, kindly contact us firstly.

You can rest assured we would handle each order no matter big or small as fast as we can.





About Us

We are honest seller, any problems please contact us before leaving your feedback. We will try our best to work out the issue with you.

These products come from our joint factory, its annual output is about 100,000,000 pcs. It is one of the main copperware makers in China with a 25 years’ experience in producing copperware and has already passed ISO 9001 quality guarantee system attestation, to ensure the long-term and stable quality of products .

  • Package Include: 50pcs sleeves ferrule, 25pcs compression nut.
  • Material: brass.
  • Tube Size:1/8" OD.
  • Net Weight: 0.4g/PC(sleeves ferrule), 3.6g/PC(nut).
  • Type: Compression sleeves ferrule and nut.

User questions & answers

Question: I assume this can be used in other type of tubing besides copper tubing
Answer: I wish I could answer this, but it has been many years since I bought the line. I have since sold my boat and retired. I do wish I was in the position answer this. I would go to a mono line company website and try to find the answer.
Question: Do you have a kit that has these 2 plus the little tubes that go in the end to form a seal
Answer: Not at this time, the epa new laws make it very difficult to pass the new regulations. As a matter of fact no tests actually meet the regulations, all older tests which had been certified under old more lax regulations were grandfathered in. Essentially setting the bar higher for new tests. I hope this answers your question!

Parker A-Lok 4NU4-B Brass Compression Tube Fitting, Nut, 1/4" Tube OD

Parker Hannifin

Based on 5 reviews Check latest price

Product description

  • Nut tightens and provides compression on the ferrule of a flareless fitting
  • Connects to tubing
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • For use with a twin ferrule compression fitting set for a leak-resistant seal in high-pressure applications
  • For use with copper tubing

4 AN Tube Nut and 1/4 ID Sleeve For 1/4" OD Tube Hose Line Fitting Adapter Aluminum Tubing Nuts Black Anodized

Based on 16 reviews Check latest price

Product description

Tube nuts and sleeve: Also comes in different sizes, pls contact us for more

product information.



37 Degree Single Flare Nuts And Sleeve Hose Fittings For 1/4 inch Tubing

Female pipe sealing adapters guarantees a positive seal at maximum operating pressures

Two finishes are available to compliment the looks of the hose installation

They are a perfect match for billet components and are great corrosion protection for salt water marine use.

  • JIC -4AN Dash Size 4, for 1/4" O.D. tube, AN04 SAE thread size hex replacement
  • -4AN, package with 1-Nut and 1-Sleeve
  • Manufacture from lightweight 6061 t6 cnc machined aluminum alloy
  • Precision machined to ensure precise thread engagement, performance product
  • AN4 female tube nut and compression sleeve, black anodized finish for durability, long last and strength

User questions & answers

Question: does the hard line need to be flared for this to stay on? If not, how does it stay on
Answer: Don't know but so far so good.

Anderson Metals - 50064-06 50064 Brass Compression Tube Fitting, Tee, 3/8" x 3/8" x 3/8" Tube OD

Anderson Metals

Based on 44 reviews Check latest price

Product description

  • Tee with three openings for connecting and branching three pipes
  • Female compression tube fitting for connecting to male threaded pipes
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Operating temperature range of -65 to +250 degrees F
  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.

User questions & answers

Question: Is this fitting lead free compliant? Trying to use with fridge filtration system.Thanks
Answer: Its straight thru with a compression washer and nut, should be able to pass tubing
Question: Is this DOT approved
Answer: NPT is a tapered thread. So it snuggs up when you tighten it. Use teflon tape or teflon pipe compound. On the other hand, hose fittings are linear thread and require a composition or rubber washer to seal properly. don't try to mix the two...it won't work.
Question: do these come with compression inserts
Answer: I had good luck with them. Pretty durable, no issues with my organic plantings
Question: If these truly contain lead (as stated in description) what point is there to them? They can't be used on a water line! Buy a lead-free tee
Answer: I used these for quick repairs on 1/2 " copper pipes before sharkbites and still use them at times they are available in tees and 90 elbows

Anderson Metals 50062-06 50062 Brass Compression Tube Fitting, Union, 3/8" x 3/8" Tube OD

Anderson Metals

Based on 82 reviews Check latest price

Product description

Three piece construction - nut, sleeve and body with attached insert. Use with copper, brass, aluminum, or plastic tubing. -65 Degree F to +250 degree F temperature range. Standard fittings use short nuts. Easy to disassemble no flaring tool required. Primary uses water, gasoline, oil and vacuum lines. 3/8" Tube outer diameter. 5/8"-18 Thread size.

  • Three piece construction - nut, sleeve and body with attached insert
  • Use with copper, brass, aluminum, or plastic tubing
  • Standard fittings use short nuts
  • Easy to disassemble no flaring tool required
  • Primary uses water, gasoline, oil and vacuum lines
  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.

User questions & answers

Question: will this work with plastic tubing? or do i need to order some additional items to use it with plastic tubing
Answer: No sir it’s a pressure fitting
Question: To use this fitting do you still have to flare the end of tubing
Answer: You will 2 for each coil one upper & 1 on the bottom. You have to install it between the spring & the lower & upper plate of the strut. Make sure you get the right size for your coil spring.
Question: I need a temporary connector, can it be removed and reconnected
Answer: Not sure -but they’re probably not going to be anywhere near strong enough for that kind of weight and vibration I used mine to hold a coolant bottle on a generator engine
Question: Will this connect 2 dishwasher supply lines? My single supply line isn't long enough
Answer: Hello,Timken HB26 will work on the 96 Tacoma

Legris 0110 08 00 Brass Compression Tube Fitting, Nut, For 8 mm Tube OD x M12x1 Thread, 14 mm Hex Siz, 13 mm Length

Parker Legris

Product description

  • Nut for connecting to a tube
  • Metric threaded connection
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Operating pressure rating range of 200 to 500 psi at a temperature range of -65 to +250 degrees F
  • Meets RoHS standards adopted by the EU

LTWFITTING1/4-Inch Brass Compression Nut,Brass Compression Fitting(Pack of 25)

Ningbo Haishu HuaxinYicheng Trade Co., Ltd.

Based on 18 reviews Check latest price

Product description



Product Description

Durable and high standard brass compression nut. Commonly used to connect lines for air, water, fuel, oil and inert gases in a quick and simple way.

Click "honest-f" to choose the product you want in our shop.





Features

- Package Include:25 pcs.

- Materies: brass.

- Net Weight: 5.8g/pc.

- Type: Compression Nut.

- Tube Size:1/4" OD.





Important Note

Pay attention to the column of size and color, you could find a variety of product types and quantities for your choice.

The more your purchase the best price you get.





About Shipping

Great stock availability and fast dispatch are our core business. We would make effort to process each order within 24 hours.

We are international seller, each item is required to be checked by two customs. China Post Air Mail and epacket are our main carriers,it normally takes about 1-2 weeks to deliver to US.

If you do not receive the item during this period or have any problems, kindly contact us firstly.

You can rest assured we would handle each order no matter big or small as faster as we can.





About Us

We are honest seller, any problems please contact us before leaving your feedback. We will try our best to work out the issue with you.

These products come from our joint factory, its annual output is about 100,000,000 pcs. It is one of the main copperware maker in China with a 25 years¡¯ experience in producing copperware and has already passed ISO 9001 quality guarantee system attestation, to ensure the long-term and stable quality of products .

  • Type: Compression Nut
  • Tube Size:1/4" OD
  • Materies: BRASS
  • Net Weight: 5.8g/PC
  • Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.

User questions & answers

Question: Can these be used with poly tube
Answer: .075

Anderson Metals - 50068-0302 Brass Tube Fitting, Connector, 3/16" Compression x 1/8" Male Pipe

Anderson Metals

Based on 138 reviews Check latest price

Product description

Three piece construction - nut, sleeve and body with attached insert. Use with copper, brass, aluminum, or plastic tubing. -65 Degree F to +250 degree F temperature range. Standard fittings use short nuts. Easy to disassemble no flaring tool required. Primary uses water, gasoline, oil and vacuum lines. 5/16"-24 and 3/8"-24 Thread sizes.

  • Three piece construction - nut, sleeve and body with attached insert
  • Use with copper, brass, aluminum, or plastic tubing
  • Standard fittings use short nuts
  • Easy to disassemble no flaring tool required
  • Primary uses water, gasoline, oil and vacuum lines
  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.

User questions & answers

Question: are these fitting dot approved
Answer: The crimp rings should crimp and seal on properly sized plastic tubing.
Question: Will this work with stainless steel tubing
Answer: I did not, and it’s been working well for a while. I don’t think it would fit if you did flare it.
Question: Can I pass my tubing all the way through this? Or is there a stop preventing that
Answer: The same connection can be unscrewed and reconnected but the compression ring cannot be removed and salvaged to be put on another piece
Question: Will the 3/4 NPT male fit a garden hose
Answer: I am guessing that the reason you are asking is because your supply line is plastic or plex. As long as you use inserts inside the plastic pipe you are connecting it should be just fine.

Eaton Weatherhead 61X4 Compression Fitting Nut, CA360 Brass, 1/4" Tube OD (Pack of 5)

Weatherhead

Based on 2 reviews Check latest price
  • Nut for a tube compression fitting
  • Connects to 1/4" copper, brass, aluminum, or plastic tubing
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Operating temperature range of -65 to +250-Degree F
  • No flaring tool required for assembly

User questions & answers

Question: is this nut a cap
Answer: NPT is a tapered thread. So it snuggs up when you tighten it. Use teflon tape or teflon pipe compound. On the other hand, hose fittings are linear thread and require a composition or rubber washer to seal properly. don't try to mix the two...it won't work.

Anderson Metals-30061-12 Brass Compression Tube Fitting, Nut, 3/4" Tube OD

Anderson Metals

Based on 1 reviews Check latest price

Product description

  • Nut for connecting to a tube or fitting
  • Connects to copper, brass, aluminum, or steel tubing
  • Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
  • Operating temperature range of -65 to +250 degrees F
  • Resists mechanical pullout for a more secure connection
  • These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.

User questions & answers

Question: How many does it come with
Answer: Its straight thru with a compression washer and nut, should be able to pass tubing

Sellerocity Kit 5 Pack Of Brass Compression Nut Tube Sleeve Ferrule 1/4" OD

Sellerocity

Product description

Sellerocity 5 Pack Of Brass Compression Nut Tube Sleeve Ferrule 1/4" OD

  • Ships For Free From Sellerocity Sales In Sarasota, Florida
  • 5 Month Sellerocity Warranty Against Manufacturer Defects
  • Sourced from Midwest Controls
  • Backed by Sellerocity customer service

Parker Hannifin 61CA-6 Brass Nut/Sleeve Compress-Align Fitting, 3/8" Compression Tube x 3/8" Compression Tube

Parker Hannifin Corporation

Based on 3 reviews Check latest price

Product description

Parker's economical compress-align fittings are pre-assembled with a captive sleeve which is always Oriented Correctly for faster assembly. The captive sleeve gives a visible inspection before and after installation and the design of the sleeve aligns to seal even out-of-round tubing. Compress-align can be used in many areas where flare fittings are used due to the higher pressure rating, meaning no flaring, soldering or tube preparation resulting in faster installation. Compress-align bodies are interchangeable with standard compression bodies so inventory is decreased.

  • All brass construction
  • Captive sleeve
  • Higher working pressures versus standard compression fitting
  • Bodies Interchangeable with standard compression bodies
  • One Wrench turn from finger tight for assembly for all sizes

User questions & answers

Question: Does this come with the ferule
Answer: Yes
Question: Does this come with a tubing support insert for use on plastic tubing
Answer: No, you want a stainless compression fitting. The brass ferrule is too soft to indent the stainless line.

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