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Links below contain tubing and the nuts and fittings for that size tubing

5/16"/8mm 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.
 
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 A3-5 nut, the "-5" indicates it would be used with CNF-5 (5/16") tubing.
The nut dash size must match the tube dash size.
 
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Mastercard, Visa, American Express and Discover accepted.
 
 
Shops, Wholesale, Schools and Military Personnel - Call for pricing
Displaying products 1 - 10 of 10 results
5/16
CNF-5 - 5/16"/7.94mm OD tubing x 25 foot coil
Price: $87.95
CNF-5 - 5/16"/7.94mm OD tubing x 25 foot coil
5/16"/7.94mm OD tubing x 25 foot coil
5/16
CNF-5A - 5/16"/7.94mm OD tubing x 12 foot coil
Price: $48.98
CNF-5A - 5/16"/7.94mm OD tubing x 12 foot coil
5/16"/7.94mm OD tubing x 12 foot coil
unavailable
CNF-5B - 5/16"/7.94mm OD tubing x 6 foot coil
Price: $29.98
CNF-5B - 5/16"/7.94mm OD tubing x 6 foot coil
5/16"/7.94mm OD tubing x 6 foot coil
1/2
A3-5 is a 1/2" x 20 unf male fully threaded steel nut - SAE flare
Price: $2.00
A3-5 is a 1/2" x 20 unf male fully threaded steel nut - SAE flare
1/2" x 20 unf male fully threaded steel nut, .600” longoverall SAE flare (45 degree inverted/double) Use with 5/16" brake line
1/8
AD5br - Screw 5/16" line into female port to adapt to 1/8" NPT port hole - brass
Price: $4.00
AD5br - Screw 5/16" line into female port to adapt to 1/8" NPT port hole  - brass
Adaptor 1/8" NPT male to 1/2" x 20 female SAE flare (45 degree inverted/double) This adaptor is brass
1/2
UA3-5br is a 1/2" x 20 unf female union - brass - SAE flare
Price: $4.50
UA3-5br is a 1/2" x 20 unf  female union - brass - SAE flare
Union 1/2" x 20 unf female union SAE flare (45 degree inverted/double) This union is brass Use with 5/16" brake line
14mm x 1.5 male brake line tubing nut with non-threaded lead - DIN flare
M9L-5 is a 14mm x 1.5 male nut with non-threaded lead - DIN flare
Price: $5.00
M9L-5 is a 14mm x 1.5 male nut with non-threaded lead - DIN flare
14mm x 1.5 male with non-threaded lead, 25mm long overall DIN flare (bubble/ISO) Use with 5/16" brake line
14mm x 1.5 steel brake line union, female - DIN flare
UM21-5 is a 14mm x 1.5 steel union, female - DIN flare
Price: $16.00
UM21-5 is a 14mm x 1.5 steel union, female - DIN flare
Union 14mm x 1.5 steel union, female, 40mm long overall DIN flare (bubble/ISO) Use with 5/16" brake line
1/2
AN816-5 is a 1/2" x 20 unf x 1/8" NPT Adaptor - 37 degree flare
Price: $12.00
AN816-5 is a 1/2" x 20 unf x 1/8" NPT Adaptor - 37 degree flare
1/2" x 20 unf x 1/8" NPT Adaptor 1.14” long overall 37 degree flare Use with 5/16" brake line
1/2
AN 5/16 is a 1/2" x 20 unf female steel nut and sleeve - 37 degree flare
Price: $5.00
AN 5/16 is a 1/2" x 20 unf female steel  nut and sleeve - 37 degree flare
1/2" x 20 unf female steel nut (.685” long overall) and sleeve (.400" overall) 37 degree flare Use with 5/16" brake line
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