TM 5-3805-291-23-2
TORQUE LIMITS - CONTINUED
0234 00
MISCELLANEOUS FITTINGS
Hi-Duty Tube Fittings (Shear Sleeve)
427-C2079
Put nut (1) over tube and push tube into counterbore of fitting body as far as possible. Turn nut with wrench until small
decrease in torque is felt. Small decrease in torque indicates that sleeve (2) has been broken off of the nut. Hold tube to prevent
tube from turning. Tighten nut for an additional 1 1/2 turns.
SAE Flareless Fittings
427-C2080
Put nut (1) and sleeve (2) over tube. Head end of sleeve should be next to nut. Head end has shoulder. Push tube into
counterbore of fitting body as far as possible. Turn nut clockwise until sleeve grips tube. Sleeve must stop all movement of
tube. Tighten nut until sudden increase in torque is felt. Next, tighten fitting for an additional 1/6 to 1/3 turn to seat sleeve.
Flex Fittings
427-C2081
Put nut (1) and sleeve (2) over tube and push tube into counterbore of fitting body as far as possible. Tighten nut until
nut is against hex part of fitting body.
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