Description:
Nuts - Unions - Tees - Connectors - Elbows
Coupling Category
Air Fittings
Manufacturer
Dixon Air Fittings
Advantages:
- economical fitting resists mechanical pullout
- easy to disassemble and may be reassembled repeatedly, for a leak-proof connection
- manufactured from CA 360, CA 345, or CA377 brass
- manufactured especially for hard-to-hold liquids and gases
Specifications:
- Listed with Underwriter's Laboratories for flammable liquid, marine, refrigeration and gas applications.
Meets functional requirements of SAE J512 and J513, ASA and MS (Military Standards).
- temperature range: -65°F to 250°F
Applications:
- use with copper, brass, aluminum and welded steel hydraulic tubing that can be flared
Working Pressure Ranges:
Temperature and type of tubing used are important factors, the following table is a good guide for proper
selection. The PSI rating given is based on a temperature of 73°F using copper tubing.
| PSI |
Tube OD |
Tube Wall |
|
1400
|
1/4" |
.030 |
|
1000
|
3/8" |
.032 |
|
750
|
1/2" |
.032 |
|
650
|
5/8" |
.035 |
|
550
|
3/4" |
.035 |
Assembly Instructions:
- Cut tubing squarely and clean tube end thoroughly to remove burrs.
- Place nut onto tube. Place threaded end of nut toward end of tube.
- Flare tube end with flaring tool to provide 45° flare. (flare tools are available, please contact
the factory for pricing and availability)
- Clamp tube flare between nut and nose of fitting body by screwing nut on finger-tight. Tighten with a
wrench an additional 1/4 turn for a metal-to-metal seal.
Long Nuts
- long nut offers additional vibration capacity
- reference SAE 010111
| Tube Size |
Straight Thread |
Hex |
Brass Part # |
| 1/4" |
7/16-20 |
9/16" |
41FL-4 |
| 3/8" |
5/8-18 |
3/4" |
41FL-6 |
| 1/2" |
3/4-16 |
7/8" |
41FL-8 |
Short Nuts
- short nut may be used when vibration is minimal
- reference SAE 010110
| Tube Size |
Straight Thread |
Hex |
Brass Part # |
| 1/4" |
7/16-20 |
9/16" |
41FS-4 |
| 3/8" |
5/8-18 |
3/4" |
41FS-6 |
| 1/2" |
3/4-16 |
7/8" |
41FS-8 |
Unions
| Tube Size |
Straight Thread |
Hex |
Brass Part # |
| 1/4" |
7/16-20 |
7/16" |
42F-4 |
| 3/8" |
5/8-18 |
5/8" |
42F-6 |
| 1/2" |
3/4-16 |
3/4" |
42F-8 |
Union Tees
| Tube Size |
Straight Thread |
Brass Part # |
| 1/4" |
7/16-20 |
144F-4 |
| 3/8" |
5/8-18 |
144F-6 |
| 1/2" |
3/4-16 |
144F-8 |
Female Connectors
| Tube Size |
Pipe Size |
Straight Thread |
Hex |
Brass Part # |
| 1/4" |
1/4" |
7/16-20 |
11/16" |
46F-4-4 |
| 1/4" |
3/8" |
7/16-20 |
13/16" |
46F-4-6 |
| 3/8" |
1/4" |
5/8-18 |
11/16" |
46F-6-4 |
| 3/8" |
3/8" |
5/8-18 |
13/16" |
46F-6-6 |
| 3/8" |
1/2" |
5/8-18 |
1" |
46F-6-8 |
| 1/2" |
1/4" |
3/4-16 |
3/4" |
46F-8-4 |
| 1/2" |
3/8" |
3/4-16 |
13/16" |
46F-8-6 |
| 1/2" |
1/2" |
3/4-16 |
1" |
46F-8-8 |
| 5/8" |
3/8" |
7/8-14 |
7/8" |
46F-10-6 |
Male Connectors
| Tube Size |
Pipe Size |
Straight Thread |
Hex |
Brass Part # |
| 1/4" |
1/4" |
7/16-20 |
9/16" |
48F-4-4 |
| 1/4" |
3/8" |
7/16-20 |
11/16" |
48F-4-6 |
| 1/4" |
1/2" |
7/16-20 |
7/8" |
48F-4-8 |
| 3/8" |
1/8" |
5/8-18 |
5/8" |
48F-6-2 |
| 3/8" |
1/4" |
5/8-18 |
5/8" |
48F-6-4 |
| 3/8" |
3/8" |
5/8-18 |
11/16" |
48F-6-6 |
| 3/8" |
1/2" |
5/8-18 |
7/8" |
48F-6-8 |
| 1/2" |
1/4" |
3/4-16 |
3/4" |
48F-8-4 |
| 1/2" |
3/8" |
3/4-16 |
3/4" |
48F-8-6 |
| 1/2" |
1/2" |
3/4-16 |
7/8" |
48F-8-8 |
| 5/8" |
3/8" |
7/8-14 |
7/8" |
48F-10-6 |
| 3/4" |
3/4" |
1-1/16-14 |
1-1/16" |
48F-12-12 |
Male Elbows
| Tube Size |
Pipe Size |
Straight Thread |
Brass Part # |
| 1/4" |
1/8" |
7/16-20 |
149F-4-2 |
| 1/4" |
1/4" |
7/16-20 |
149F-4-4 |
| 1/4" |
3/8" |
7/16-20 |
149F-4-6 |
| 3/8" |
1/4" |
5/8-18 |
149F-6-4 |
| 3/8" |
3/8" |
5/8-18 |
149F-6-6 |
| 3/8" |
1/2" |
5/8-18 |
149F-6-8 |
| 1/2" |
1/4" |
3/4-16 |
149F-8-4 |
| 1/2" |
3/8" |
3/4-16 |
149F-8-6 |
| 1/2" |
1/2" |
3/4-16 |
149F-8-8 |
| 5/8" |
1/2" |
7/8-14 |
149F-10-8 |
| 3/4" |
3/4" |
1-1/16-14 |
149F-12-12 |
Female Elbows
| Tube Size |
Pipe Size |
Straight Thread |
Brass Part # |
| 1/4" |
1/8" |
7/16-20 |
150F-4-2 |
| 1/4" |
1/4" |
7/16-20 |
150F-4-4 |
| 3/8" |
1/4" |
5/8-18 |
150F-6-4 |
| 3/8" |
3/8" |
5/8-18 |
150F-6-6 |
| 3/8" |
1/2" |
5/8-18 |
150F-6-8 |
| 1/2" |
3/8" |
3/4-16 |
150F-8-6 |
| 1/2" |
1/2" |
3/4-16 |
150F-8-8 |
Union Elbows
| Tube Size |
Straight Thread |
Brass Part # |
| 1/4" |
7/16-20 |
155F-4 |
| 3/8" |
5/8-18 |
155F-6 |
| 1/2" |
3/4-16 |
155F-8 |
45° Elbows
| Tube Size |
Pipe Size |
Straight Thread |
Brass Part # |
| 1/4" |
1/4" |
7/16-20 |
159F-4-4 |
| 3/8" |
1/4" |
5/8-18 |
159F-6-4 |
| 3/8" |
3/8" |
5/8-18 |
159F-6-6 |
| 1/2" |
1/4" |
3/4-16 |
159F-8-4 |
| 1/2" |
3/8" |
3/4-16 |
159F-8-6 |
| 1/2" |
1/2" |
3/4-16 |
159F-8-8 |
90° Swivel Elbows
| Tube Size |
Straight Thread |
Brass Part # |
| 1/4" |
7/16-20 |
166FSV-4-4 |
| 3/8" |
5/8-18 |
166FSV-6-6 |
| 1/2" |
3/4-16 |
166FSV-8-8 |
