Steel Straight Thread O-Ring Adapters

Conformance
Materials
Working Pressures
Caution

Conformance
  • SAE J514
  • SAE J1926/1, SAE J1926/3
  • ISO 11926-1, ISO 11926-3

Materials
  • Steel- SAE 12L14 Carbon steel plated zinc with yellow dichromate or bright iridite finish.

Working Pressures

The following table lists the recommended working pressures for steel O-ring Straight Thread Fittings made in accordance with SAE standard J514. Many factors such as surging, vibration, mechanical shock and over tightening may affect the integrity of the fitting connections. SAE recommends sufficient testing be conducted to assure that performance levels will be safe and satisfactory, especially if installed in systems operating at elevated pressures or in severe conditions. When using the fittings with different size or thread type, use the lower pressure rating of the two threads.


SAE J514 O-Ring Straight Thread Fitting pressure ratings for straight and adjustable thread port studs

Dash Size
Straight Thread
4 TO 1 Minimum Burst PSI
Straight O-Ring
4 TO 1 Minimum Burst PSI Adjustable O-Ring
-2
5/16-24
5000
5000
-3
3/8-24
5000
5000
-4
7/16-20
5000
4500
-5
1/2-20
5000
4000
-6
9/16-18
5000
4000
-8
3/4-16
4500
4000
-10
7/8-14
3500
3000
-12
1 1/16-12
3500
3000

-14

1 3/16-12
3000
2500
-16
1 5/16-12
3000
2500
-20
1 5/8-12
2500
2000
-24
1 7/8-12
5000
1500
-32
2 1/2-12
1500
1125



Caution
Although most O-ring Straight Thread Fittings have sufficient structural integrity to support the weight of many components, consult with our technical support department for guidance in selection of parts for this purpose.