Best Compression Fitting Nuts (Oct. 2026) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

1/4" Brass Compression Tube Nut Fittings | 361-04 (5-PACK)

9.9
CPR Score
Top 2

3/8" Brass Compression Tube Nut Fittings | 361-06 (5-PACK)

9.7
CPR Score
Top 3

Midline Valve RSC2256 Compression Coupling Fitting, with Packing Nut, Brass 3...

9.7
CPR Score
Tips


Our team has analyzed 306 products of different brands, including Parker, uxcell, Midland, PATIKIL, 4LIFETIMELINES, Midline Valve, Cionyce, LTWFITTING And Parker Hannifin. The following list of top 30 best Compression Fitting Nuts is selected for the customers by analyzing and comparing different features.

* CherryPicks.Reviews is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Compression Fitting Nuts Rated by CherryPicks

Market Overview
Compression Fitting Nuts Reviewed
  • Reviews Analyzed: 1,032 Items
  • CPR Avg. Rating: 8.6 / 10
30 Products Evaluated
  • Highest Price: $83.87
  • Lowest Price: $6.95
  • Avg. Price: $19.15
Price Disclaimer

Top 30 Compression Fitting Nuts on Amazon (Verified You can Buy)

Top 1

1/4" Brass Compression Tube Nut Fittings | 361-04 (5-PACK)

Discount Hydraulic Hose.com
361-04

Ratings for Discount Hydraulic Hose.com (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Hydraulax - ❌ ❌ ❌

Features

Excellent for use in instrumentation, hydraulic and pneumatic systems, compression fittings are reliable and reusable.
These brass compression tube nuts provide vibration resistance - Use with aluminum, copper, and plastic tubing.
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Top 2

3/8" Brass Compression Tube Nut Fittings | 361-06 (5-PACK)

Discount Hydraulic Hose.com
361-06

Ratings for Discount Hydraulic Hose.com (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Hydraulax - ❌ ❌ ❌

Features

Excellent for use in instrumentation, hydraulic and pneumatic systems, compression fittings are reliable and reusable.
These brass compression tube nuts provide vibration resistance - Use with aluminum, copper, and plastic tubing.
Show More
Top 3

Midline Valve RSC2256 Compression Coupling Fitting, with Packing Nut, Brass 3/4 in. Diameter x 3 in. Length

Midline Valve
RSC2256
2.5 x 0.75 x 0.75 inches

Ratings for Midline Valve (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ✅ ✅ ✅
Pro Plumbing Supply 6,488 ✅ ✅ ✅

Features

SECURITY: unites 2 shorter lengths of same O. D. piping with a secure, leak –free compression joint
VERSATILE: works great with ice makers, faucets, dishwashers, washing machines, etc.
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Top 4

Midline Valve RSC2322 Compression Coupling, Packing Nut, Brass 1 in. Nominal Fitting, 3 in. Length

Midline Valve
RSC2322
2.5 x 1.0 x 1.0 Inches

Ratings for Midline Valve (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌

Features

Security: unites 2 shorter lengths of same O. D. piping with a Secure, Leak –Free Compression joint
Versatile: works Great with ice makers, Faucets, dishwashers, washing machines, etc.
Show More
Top 5

Cionyce 10 Pack Brass Flare Nut for Air Conditioning Copper Pipe Extension Butt (10PCS, 1/2" Flare Nut)

Cionyce

Ratings for Cionyce (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
CHAZC - ❌ ❌ ❌

Features

Material Advantage: Made of brass, this Flare Nut offers corrosion resistance, ductility at high temperatures, and low magnetic permeability.
Wide Application: Widely used in fuel, air, liquid, oil, gas, and vacuum lines, making it highly versatile for various applications.
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Top 6

LTWFITTING 1/4-Inch Brass Compression Nut,Brass Compression Fitting(Pack of 25)

LTWFITTING
HF61425

Ratings for LTWFITTING (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
honest-f 7,843 ❌ ❌ ❌

Features

Type: Compression Nut
Tube Size:1/4" OD
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Top 7

4LIFETIMELINES Steel Tube Nut, 3/16 (M12x1.0 Bubble), 10/bag

4LIFETIMELINES
LTN38-FBM
7.0 x 4.0 x 0.5 inches
0.25 pounds

Ratings for 4LIFETIMELINES (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
4LifetimeLines - ❌ ❌ ❌

Features

Includes ten (10) Steel Tube Nut, 3/16, M12x1.0 Bubble, per bag
4LifetimeLines brake line tube nuts are made with unmatched superior quality
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Top 8

FITOK 37 Degree Flared Tube Fitting 3/8" JIC Nut and Sleeve Set 316 Stainless Steel

FITOK

Ratings for FITOK (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Fitok - ❌ ❌ ❌

Features

Nut reference: SAE 070110. Sleeve reference: SAE 070115. Dash size: 6. Thread size: 9/16-18. For use with 3/8" OD metal tubing. Maximum allowable working pressure: 5000 psi
High quality 316 stainless steel for superior mechanical strength and excellent resistance to corrosion
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Top 9

uxcell Brass Tubing Nut Tube Fitting Compression Insert Hydraulic Nuts M10x6mm 8pcs

uxcell
0.0992 pounds

Ratings for uxcell (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
uxcell 31 ✅ ✅ ✅

Features

Thread Size: M10; Fit for Pipe Diameter: 6mm / 0.24"; Hexagonal Width: 12mm / 0.47"; Total Length: 12mm / 0.47"
The ferrule joint has the characteristics of firm connection, high pressure resistance, good sealing and repeatability, convenient installation and maintenance, and safe and reliable work.
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Top 10

1/2" Stainless Steel Compression Nut, 316 SS, Set of 2

Teton Supply
0.5 x 0.5 x 0.1 Inches
0.0125 pounds

Ratings for Teton Supply (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Teton Supply - ❌ ❌ ❌

Features

PREMIUM MATERIAL: Constructed from high-quality 316 stainless steel for superior corrosion resistance and durability in demanding applications
SIZE SPECIFICATION: 1/2 inch compression nut designed to provide secure, leak-proof connections in plumbing and fluid system installations
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Top 11

1/2" Brass Compression Tube Nut Fittings | 361-08

Discount Hydraulic Hose.com

Ratings for Discount Hydraulic Hose.com (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Hydraulax - ❌ ❌ ❌

Features

Excellent for use in instrumentation, hydraulic and pneumatic systems, compression fittings are reliable and reusable.
These brass compression tube nuts provide vibration resistance - Use with aluminum, copper, and plastic tubing.
Show More
Top 12

HANSUM 1/2 Swivel Female Male Union Flare Nut Mini Split Adapter SAE 45 Degree Flares Fitting Brass Cap for Line Set Tube Connector Compression Fitting Metal Coupling Copper Pipe (1/2,2packs)

HANSUM
NUT008
0.94 x 0.94 x 0.79 Inches
0.07 pounds

Ratings for HANSUM (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HANSUM Store - ❌ ❌ ❌

Features

[Material]: Solid brass, solid and durable, with corrosion resistance, high temperature ductility and low permeability. Durable and high standard brass fittings flared short forged nuts. It is usually used to connect air, water, fuel, oil and inert gas pipelines in a quick and simple way.
[Features]: The two ends of the joint are connected with 45 ° flares, which has multiple functions and is convenient for installation and disassembly.
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Top 13

FITOK 316 Stainless Steel Compression Tube Fitting Nut – 1/2" OD, SS-N-FL8 (5 pcs)

FITOK
SS-N-FL8
0.69 x 0.87 x 0.87 inches

Ratings for FITOK (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Fitok - ❌ ❌ ❌

Features

Premium Material: Manufactured from high-quality 316 stainless steel for superior mechanical strength and excellent corrosion resistance.
Anti-Galling Design: Silver-plated nut threads reduce friction against body threads, preventing galling and ensuring smooth assembly.
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Top 14

3/8" Stainless Steel Compression Nut, Set of 2

Teton Supply
1.0 x 0.375 x 0.5 Inches

Ratings for Teton Supply (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Teton Supply - ❌ ❌ ❌

Features

PREMIUM MATERIAL: Constructed from high-quality stainless steel for superior corrosion resistance and long-lasting durability in plumbing applications
STANDARD SIZE: 3/8 inch compression nut designed to create secure, leak-proof connections with compatible compression fittings and ferrules
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Top 15

PATIKIL M10 Male Thread 6.2mm ID Brass Compression Fittings, 4 Pack Brass Compression Nut

PATIKIL
3.5433 x 2.3622 x 0.5906 inches

Ratings for PATIKIL (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
PATIKIL US 4,583 ❌ ❌ ❌

Features

Material: Brass; Color: Gold Tone; Inner Diameter: 6.2mm / 0.24"; Thread Size: M10*1.0; Ferrule Size: 10mm x 12.5mm / 0.39" x 0.49"(Hex.W*H); Package List: 4 x Brass Compression Nut
Advantage: Made of brass material, which is corrosion resistant, high pressure resistant, durable and has a long service life.
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Top 16

Midline Valve RSC2234-10 Compression Coupling Fitting, with Packing Nut, Brass 1/2 in. Diameter x 3 in. Length (10 Pack)

Midline Valve
RSC2234-10
3.0 x 0.5 x 0.5 inches

Ratings for Midline Valve (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌

Features

Security: unites 2 shorter lengths of same O. D. piping with a Secure, Leak –Free Compression joint
Versatile: works Great with ice makers, Faucets, dishwashers, washing machines, etc.
Show More
Top 17

FITOK 316 Stainless Steel Compression Tube Fitting Nut – 1/4" OD, SS-N-FL4 (5 pcs)

FITOK
SS-N-FL4
0.5 x 0.56 x 0.56 inches

Ratings for FITOK (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Fitok - ❌ ❌ ❌

Features

Premium Material: Manufactured from high-quality 316 stainless steel for superior mechanical strength and excellent corrosion resistance
Anti-Galling Design: Silver-plated nut threads reduce friction against body threads, preventing galling and ensuring smooth assembly
Show More
Top 18

Midline Valve RLC2322 Compression Coupling, Packing Nut, Brass 1 in. Nominal Fitting, 5 in. Length

Midline Valve
RLC2322
2.5 x 1.0 x 1.0 inches
1.1089 pounds

Ratings for Midline Valve (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌

Features

Security: unites 2 shorter lengths of same O. D. piping with a Secure, Leak –Free Compression joint
Versatile: works Great with ice makers, Faucets, dishwashers, washing machines, etc.
Show More
Top 19

Midline Valve RSC2234 Compression Coupling, Packing Nut, Brass 1/2 in. Nominal Fitting, 3 in. Length

Midline Valve
RSC2234
2.5 x 0.5 x 0.5 inches

Ratings for Midline Valve (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌

Features

Security: unites 2 shorter lengths of same O. D. piping with a Secure, Leak –Free Compression joint
Versatile: works Great with ice makers, Faucets, dishwashers, washing machines, etc.
Show More
Top 20

LTWFITTING 5/8-Inch Brass Compression Nut,Brass Compression Fitting(Pack of 25)

LTWFITTING
HF611025

Ratings for LTWFITTING (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
honest-f 7,843 ❌ ❌ ❌

Features

Type: Compression Nut
Tube Size:5/8" OD
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Top 21

PATIKIL 2pcs 1/2" Brass Flare Nut 45 Degree SAE Union Tube Brass Cap Copper

PATIKIL
5.51 x 3.94 x 0.79 inches
0.7496 pounds

Ratings for PATIKIL (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
PATIKIL US 4,583 ❌ ❌ ❌

Features

Specification: Material: Brass; Thread Size: 1/2" Female Flare; Height: 20.19mm/ 0.795 Inch; Inner Diameter: 17.4mm/ 0.685 Inch; Outer Diameter: 23.88mm/ 0.94 Inch; Temperature Range: -53 to 121 Degree Celsius; Packing List: 2Pcs x Brass Flare Nut
Our brass flare tube fitting can work with aluminum, copper, brass, and welded steel tubing that can be flared, ensuring a secure connection for all your fuel, oil, gas, and air line applications. Manufactured especially for hard-to-hold liquids and gases. These brass flare tube fittings are good solutions for your mini split air conditioner, HVAC system and other plumbing needs.
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Top 22

FITOK 316 Stainless Steel Compression Tube Fitting Nut – 3/4" OD, SS-N-FL12 (5 pcs)

FITOK
SS-N-FL12
0.69 x 1.13 x 1.13 inches

Ratings for FITOK (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Fitok - ❌ ❌ ❌

Features

Premium Material: Manufactured from high-quality 316 stainless steel for superior mechanical strength and excellent corrosion resistance.
Anti-Galling Design: Silver-plated nut threads reduce friction against body threads, preventing galling and ensuring smooth assembly.
Show More
Top 23

Midline Valve RLC2422 Compression Coupling Fitting, with Packing Nut, Brass 2 in. Diameter x 5 in. Length, 2

Midline Valve
RLC2422
2.5 x 2.0 x 2.0 inches
1.7439 pounds

Ratings for Midline Valve (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com - ❌ ❌ ❌

Features

Security: unites 2 shorter lengths of same O. D. piping with a Secure, Leak –Free Compression joint
Versatile: works Great with ice makers, Faucets, dishwashers, washing machines, etc.
Show More
Top 24

1/2" Brass Compression Tube Nut Fittings | 361-08 (5-PACK)

Discount Hydraulic Hose.com

Ratings for Discount Hydraulic Hose.com (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Hydraulax - ❌ ❌ ❌

Features

Excellent for use in instrumentation, hydraulic and pneumatic systems, compression fittings are reliable and reusable.
These brass compression tube nuts provide vibration resistance - Use with aluminum, copper, and plastic tubing.
Show More
Top 25

Midland 18-039 Brass Compression Nut, 1/2" Size, 11/16"-20 Thread, 0.75" Hex

Midland
18-039
0.04 pounds

Ratings for Midland (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
PlumberStock 3,285 ❌ ❌ ❌

Features

Package Weight: 0.2 pounds
Country of Origin : United States
Show More
Top 26

Cionyce 6 Pack Brass Flare Nut for Air Conditioning Copper Pipe Extension Butt (6PCS, 3/4" Flare Nut)

Cionyce
0.948 pounds

Ratings for Cionyce (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
CHAZC - ❌ ❌ ❌

Features

Material Advantage: Made of brass, this Flare Nut offers corrosion resistance, ductility at high temperatures, and low magnetic permeability.
Wide Application: Widely used in fuel, air, liquid, oil, gas, and vacuum lines, making it highly versatile for various applications.
Show More
Top 27

Parker Hannifin 61P-4-pk10 Poly-Tite Nut and Sleeve Assembly Fitting, Brass, Plastic, 1/4" Tube Size, 3/8-24 Straight Thread (Pack of 10)

Parker Hannifin
61P-4-pk10
3.0 x 2.0 x 1.4 inches
1.0 pounds

Ratings for Parker Hannifin (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Megamart USA 1,732 ❌ ❌ ❌
SIM Supply, Inc. 1,178 ❌ ❌ ❌

Features

Designed for use with thermoplastic tubing
Machined in tube support
Show More
Top 28

Brass 1/2" OD Short SAE 45 Deg Flare Nut,Brass Flare Tube Fitting(Pack of 10)

LTWFITTING
0.5512 pounds

Ratings for LTWFITTING (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
honest-f 7,843 ✅ ✅ ✅

Features

Type: Short Flare Nut
Tube Size:1/2" OD
Show More
Top 29

Parker Hannifin 61C-4-pk20 Compression Fitting, Nut, 1/4" Compression Tube, Brass (Pack of 20)

Parker
61C-4-pk20

Ratings for Parker (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Numoon Collection - ❌ ❌ ❌

Features

All brass construction
Feature: economical
Show More
Top 30

Avid Hydraulic Disc Brake Compression Hose Nut - Replacement Part for Avid Brakes, Durable Material, Precision Engineering, Compatible with Hydraulic MTB & Road Bikes (Pack of 5)

Avid
11.5309.766.000
9.0 x 5.5 x 1.0 inches
0.0 Pounds
  • Original Language: English

Ratings for Avid (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Bicycle Addiction 1,068 ❌ ❌ ❌

Features

replacement compression hose nut designed specifically for Avid hydraulic disc brake systems, ensuring a secure and leak-free connection.
Constructed from durable, corrosion-resistant materials to withstand harsh riding conditions and extend the lifespan of your brake components.
Show More

Top 10 Compression Fitting Nuts - Verified to Buy (October 2026)

Top 10 Compression Fitting Nuts Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • Discount Hydraulic Hose.com
  • Midline Valve
  • Cionyce
  • LTWFITTING
  • 4LIFETIMELINES
  • FITOK
  • uxcell
  • Teton Supply
  • HANSUM
  • PATIKIL

Top 10 Compression Fitting Nuts Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 uxcell 561,997 4.8
🥈 Bicycle Addiction 47,548 4.9
🥉 SIM Supply, Inc. 44,083 4.6
4 Megamart USA 32,788 4.8
5 PlumberStock 19,023 4.6
6 PATIKIL US 14,251 4.7
7 Pro Plumbing Supply 10,358 4.8
8 honest-f 8,684 4.9
9 4LifetimeLines 3,976 4.8
10 Numoon Collection 2,254 4.7
View or download top Compression Fitting Nuts seller & rating report
uxcell [561997] Bicycle Addiction [47548] SIM Supply, Inc. [44083] Megamart USA [32788] PlumberStock [19023] PATIKIL US [14251] Pro Plumbing Supply [10358] honest-f [8684] 4LifetimeLines [3976] Numoon Collection [2254] uxcell 75% Bicycle Addiction 6% SIM Supply, Inc. 6% Megamart USA 4% PlumberStock 3% PATIKIL US 2% Pro Plumbing Supply 1% honest-f 1% 4LifetimeLines 1% Numoon Collection 0%

[Get] Compression Fitting Nuts Deals (✅Exclusively for Prime)

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When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.

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"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.

Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.


Why Should You Trust Us?

Now hundreds and thousands of Hydraulics, Pneumatics & Plumbing supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Compression Fitting Nuts to buy for new October 2026?

CherryPicks’s Methodology for Evaluating Compression Fitting Nuts

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Hydraulics, Pneumatics & Plumbing items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 306 of Compression Fitting Nuts reviews based on our selection criteria. It helped us shortlist the top qualified and rated Compression Fitting Nuts for Hydraulics, Pneumatics & Plumbing, We found that most customers choose Compression Fitting Nuts with an average price of $19.15, and the top brands are Parker, uxcell, Midland, PATIKIL, 4LIFETIMELINES, Midline Valve, Cionyce, LTWFITTING And Parker Hannifin. 

Then our expert-level editors reviewed all those quality items and selected the top 30 Compression Fitting Nuts for you, We have researched hundreds of sellers and picked the top sellers for Hydraulics, Pneumatics & Plumbing, including uxcell, Bicycle Addiction, SIM Supply, Inc., Megamart USA, PlumberStock, PATIKIL US, Pro Plumbing Supply, honest-f, 4LifetimeLines, Numoon Collection, CHAZC And Hydraulax. The 1/4" Brass Compression Tube Nut Fittings | 361-... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 27 consumers with an average rating of 4.1.

We've helped a lot of satisfied users get the right Industrial & Scientific product based on their needs, and save lots of time for them to pick Compression Fitting Nuts to buy.


Written By Ronald M. Bieber

Ronald M. Bieber has rich experience as a science lab instructor in a college and this has provided him with the right requisite knowledge and experience to be a professional in the act of spotting the right and wrong product. He would be helping us make the right choice in this regard.