TM 9-2350-277-20-4REPLACE COMMANDER’S HATCH HOOK AND BUMPER (M577A3 AND M1068A3 ONLY)— Continued0501 006. Remove locknut (14), screw (15), two washers (16), spring (17), two spacers (18), and hook (19) from hull brackets.Discard locknut.0501 00-3
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