INTRODUCTION
Torques for Inch O-Ring Boss (ORB) port plug
Ferrous
SAE
Dash size
UN/UNF
Thread size
Internal Hex
External Hex
Non-Ferrous
2
5/16–24
7.5 N·m
(
5.5 lb ft
)
12.5 N·m
(
9.2 lb ft
)
7.5 N·m
(
5.5 lb ft
)
3
3/8–24
14.5 N·m
(
10.7 lb ft
)
21 N·m
(
15.5 lb ft
)
12.5 N·m
(
9.2 lb ft
)
4
7/16–20
21 N·m
(
15.5 lb ft
)
37 N·m
(
27.3 lb ft
)
22 N·m
(
16.2 lb ft
)
5
1/2–20
28 N·m
(
20.7 lb ft
)
42 N·m
(
31.0 lb ft
)
25 N·m
(
18.4 lb ft
)
6
9/16–18
47 N·m
(
34.7 lb ft
)
47 N·m
(
34.7 lb ft
)
28 N·m
(
20.7 lb ft
)
8
3/4–16
89 N·m
(
65.6 lb ft
)
89 N·m
(
65.6 lb ft
)
53 N·m
(
39.1 lb ft
)
10
7/8–14
116 N·m
(
85.6 lb ft
)
116 N·m
(
85.6 lb ft
)
70 N·m
(
51.6 lb ft
)
12
1-1/16–12
176 N·m
(
129.8 lb ft
)
176 N·m
(
129.8 lb ft
)
106 N·m
(
78.2 lb ft
)
14
1-3/16–12
247 N·m
(
182.2 lb ft
)
247 N·m
(
182.2 lb ft
)
148 N·m
(
109.2 lb ft
)
16
1-5/16–12
284 N·m
(
209.5 lb ft
)
284 N·m
(
209.5 lb ft
)
170 N·m
(
125.4 lb ft
)
20
1-5/8–12
357 N·m
(
263.3 lb ft
)
357 N·m
(
263.3 lb ft
)
214 N·m
(
157.8 lb ft
)
24
1-7/8–12
441 N·m
(
325.3 lb ft
)
441 N·m
(
325.3 lb ft
)
265 N·m
(
195.5 lb ft
)
32
2-1/2–12
536 N·m
(
395.3 lb ft
)
536 N·m
(
395.3 lb ft
)
322 N·m
(
237.5 lb ft
)
NOTE:
Final torque tol/–
10%
of the given torque specification.
48194558 20/10/2017
52