TM 5-3805-291-23-2
TORQUE LIMITS - CONTINUED
0234 00
FLARE FITTINGS - CONTINUED
45 Degree Flare and 45 Degree Inverted Flare Fittings
(1) 45 Degree Inverted Flare Fittings
(2) 45 Degree Flare Fittings
427-C2077
Table 16. 45 Degree Flare Fittings and 45 Degree Inverted Flare Fittings.
Nominal Outer
Thread Size
Standard Torque
Diameter of the Tube
(In.)
.125 in. (3.18 mm)
5/16
44 13 lb-in. (5.0 1.5 Nm)
.188 in. (4.76 mm)
3/8
70 13 lb-in. (8.0 1.5 Nm)
.250 in. (6.35 mm)
7/16
100 15 lb-in. (11 2 Nm)
.312 in. (7.94 mm)
1/2
13 2 lb-ft (18 3 Nm)
.375 in. (9.52 mm)
5/8
22 2 lb-ft (30 3 Nm)
.375 in. (9.52 mm)
5/8
26 4 lb-ft (35 5 Nm)
.438 in. (11.11 mm)
11/16
22 2 lb-ft (30 3 Nm)
.500 in. (12.70 mm)
3/4
28 3 lb-ft (38 4 Nm)
.625 in. (15.88 mm)
7/8
37 4 lb-ft (50 5 Nm)
.750 in. (19.05 mm)
1 1/16
65 6 lb-ft (88 8 Nm)
.875 in. (22.22 mm)
1 1/4
75 7 lb-ft (102 9 Nm)
0234 00-17
