Torques for Inch O-Ring Boss (ORB) adjustable stud end and port connections
SAE
UN/UNF
Dash size
Thread size
2
5/16–24
3
3/8–24
4
7/16–20
5
1/2–20
6
9/16–18
8
3/4–16
10
7/8–14
12
1-1/16–12
14
1-3/16–12
16
1-5/16–12
20
1-5/8–12
24
1-7/8–12
32
2-1/2–12
NOTE: Final torque tolerance +/– 10% of the given torque specification.
INTRODUCTION
Inch Tube OD
S-Series (Heavy Duty)
Ferrous
3.18 mm
—
(0.125 in) 1/8
4.76 mm
10.5 N·m
(0.187 in) 3/16
(7.7 lb ft)
6.35 mm
21 N·m
(0.25 in) 1/4
(15.5 lb ft)
7.94 mm
42 N·m
(0.313 in) 5/16
(31.0 lb ft)
9.52 mm
47 N·m
(0.375 in) 3/8
(34.7 lb ft)
12.7 mm
89 N·m
(0.5 in) 1/2
(65.6 lb ft)
15.88 mm
121 N·m
(0.625 in) 5/8
(89.2 lb ft)
19.05 mm
178 N·m
(0.75 in) 3/4
(131.3 lb ft)
22.22 mm
225 N·m
(0.875 in) 7/8
(166.0 lb ft)
25.4 mm
285 N·m
(1.0 in) 1
(210.2 lb ft)
31.75 mm
300 N·m
(1.25 in) 1-1/4
(221.3 lb ft)
38.1 mm
388 N·m
(1.5 in) 1-1/2
(286.2 lb ft)
50.8 mm
388 N·m
(2.0 in) 2
(286.2 lb ft)
48048569 26/04/2017
18
L-Series (Light Duty)
Non-Ferrous
Ferrous
8.5 N·m (6.3 lb
—
ft)
9.3 N·m (6.9 lb
10.5 N·m
ft)
(7.7 lb ft)
21 N·m
19 N·m
(15.5 lb ft)
(14.0 lb ft)
25 N·m
26 N·m
(18.4 lb ft)
(19.2 lb ft)
28 N·m
32 N·m
(20.7 lb ft)
(23.6 lb ft)
53 N·m
53 N·m
(39.1 lb ft)
(39.1 lb ft)
73 N·m
63 N·m
(53.8 lb ft)
(46.5 lb ft)
107 N·m
100 N·m
(78.9 lb ft)
(73.8 lb ft)
135 N·m
131 N·m
(99.6 lb ft)
(96.6 lb ft)
170 N·m
156 N·m
(125.4 lb ft)
(115.1 lb ft)
180 N·m
210 N·m
(132.8 lb ft)
(154.9 lb ft)
233 N·m
220 N·m
(171.9 lb ft)
(162.3 lb ft)
233 N·m
315 N·m
(171.9 lb ft)
(232.3 lb ft)
Non-Ferrous
5 N·m (3.7 lb
ft)
6.3 N·m (4.6 lb
ft)
11.5 N·m
(8.5 lb ft)
15.5 N·m
(11.4 lb ft)
19 N·m
(14.0 lb ft)
32 N·m
(23.6 lb ft)
38 N·m
(28.0 lb ft)
60 N·m
(44.3 lb ft)
79 N·m
(58.3 lb ft)
94 N·m
(69.3 lb ft)
126 N·m
(92.9 lb ft)
132 N·m
(97.4 lb ft)
189 N·m
(139.4 lb ft)