3/8" Fuel/Hydraulic Line and Nuts

Cunifer is a seamless, copper nickel alloy DOT approved brake line used for OEM and replacement brake lines, fuel lines, power steering and cooling lines. Corrosion proof and easy to install high pressure hydraulic tubing for the harshest environments. All of our tubing conforms to hydraulic brake tubing specifications SAE J1650, DIN 74234 and BS 2871.
 
For Girling/Lockheed brakes on British/vintage/Euro cars the fittings you need are here:   British/Girling brake line nuts
 
All nuts are steel except where followed by ss (stainless steel) or br (brass)   Nuts will vary in color.
The number after the dash in the part number indicates the tube size to be used with that nut.
-3 is 3/16", -4 is 1/4", -5 is 5/16", -6 is 3/8" , -8 is 1/2"
For example the A4-6 nut, the "-6" indicates it would be used with CNF-6 (3/8") tubing.
The nut dash size must match the tube dash size.
 
 
Shops, Wholesale, Schools and Military Personnel - Call for pricing
 
Displaying products 1 - 17 of 17 results
CNF-6 x 25 ft - 3/8" OD tubing x 25 foot coil
Price: $129.95
CNF-6 x 25 ft - 3/8" OD tubing x 25 foot coil
3/8" OD tubing x 25 foot coil
CNF-6 x 21 ft - 3/8" OD tubing x 21 foot coil
unavailable
Price: $120.95
CNF-6 x 21 ft - 3/8" OD tubing x 21 foot coil
3/8" OD tubing x 21 foot coil
CNF-6 x 18 ft - 3/8" OD tubing x 18 foot coil
unavailable
Price: $104.95
CNF-6 x 18 ft - 3/8" OD tubing x 18 foot coil
3/8" OD tubing x 18 foot coil
CNF-6 x 15 ft - 3/8" OD tubing x 15 foot coil
unavailable
Price: $89.95
CNF-6 x 15 ft - 3/8" OD tubing x 15 foot coil
3/8" OD tubing x 15 foot coil
CNF-6 x 12 ft- 3/8" OD tubing x 12 foot coil
3/8
Price: $73.95
CNF-6 x 12 ft- 3/8" OD tubing x 12 foot coil
3/8" OD tubing x 12 foot coil
CNF-6 x 9 ft - 3/8" OD tubing x 9 foot coil
unavailable
Price: $58.95
CNF-6 x 9 ft - 3/8" OD tubing x 9 foot coil
3/8" OD tubing x 9 foot coil
CNF-6 x 6 ft - 3/8" OD tubing x 6 foot coil
Price: $42.95
CNF-6 x 6 ft - 3/8" OD tubing x 6 foot coil
3/8" OD tubing x 6 foot coil
CNF-6 x 3 ft - 3/8" OD tubing x 3 foot coil
unavailable
Price: $26.95
CNF-6 x 3 ft - 3/8" OD tubing x 3 foot coil
3/8" OD tubing x 3 foot coil
A4-6 - 5/8" x 18 unf male fully threaded steel nut - SAE flare
5/8
Price: $4.00
A4-6 - 5/8" x 18 unf male fully threaded steel nut - SAE flare
5/8" x 18 unf male fully threaded steel nut, .812” long overall SAE flare (45 degree/ inverted/double) Use with 3/8" brake line
AD6br - Screw 3/8" line into female port to adapt to 1/4" NPT port hole - brass
1/4
Price: $6.00
AD6br - Screw 3/8" line into female port to adapt to 1/4" NPT port hole  - brass
Adaptor 1/4" NPT male to 5/8" x 18 female SAE (45 degree inverted/double) Use with 3/8" tubing This adaptor is brass
UA4-6br - 5/8" x 18 unf female union - brass - SAE flare
5/8
Price: $8.00
UA4-6br - 5/8" x 18 unf female union - brass - SAE flare
Union 5/8" x 18 unf female union SAE (45 degree inverted/double) This union is brass Use with 3/8" brake line
M13-6 - 16mm x 1.5 male nut with lead - DIN flare
16mm x 1.5 male brake line nut with lead - DIN flare
Price: $7.00
M13-6 - 16mm x 1.5 male nut with lead - DIN flare
16mm x 1.5 male nut with lead 19mm long overall DIN flare (bubble/ISO) Use with 3/8" brake line
P7-6 - 5/8" x 18 unf female nut - SAE flare
5/8
Price: $10.00
P7-6 - 5/8" x 18 unf female nut - SAE flare
5/8" x 18 unf female, 1.00” long overall SAE flare (45 degree inverted/double) Use with 3/8" tubing
P21-6 - 9/16" x 18 unf 37 degree to SU fuel pump 3/8-19bspp
9/16
Price: $28.00
P21-6 - 9/16" x 18 unf 37 degree to SU fuel pump 3/8-19bspp
9/16" x 18 unf 37 degree to SU fuel pump 3/8-19bspp Use with 3/8" tubing
P22-6 - 9/16" x 18 unf 37 degree to Smiths fuel pick-up 1/4-19bspp
9/16
Price: $25.00
P22-6 - 9/16" x 18 unf 37 degree to Smiths fuel pick-up 1/4-19bspp
9/16" x 18 unf 37 degree to Smiths fuel pick-up 1/4-19bspp Use with 3/8" tubing
AN 3/8 - 9/16" x 18 unf female steel nut and sleeve - 37 degree flare
9/16
Price: $9.00
AN 3/8 - 9/16" x 18 unf female steel  nut and sleeve - 37 degree flare
9/16" x 18 unf female steel nut (.730” long overall ) and sleeve (.500" overall) 37 degree flare Use with 3/8" brake line
AN816-6 - 9/16" x 18 unf x 1/4" NPT Adaptor - 37 degree flare
9/16
Price: $12.00
AN816-6 - 9/16" x 18 unf x 1/4" NPT Adaptor - 37 degree flare
9/16" x 18 unf x 1/4" NPT Adaptor 1.43” long overall 37 degree flare Use with 3/8" brake line

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