No other part numbers with same form, fit, and function found.
A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.
NSN 6645-01-377-2553
NSN 6240-01-285-0927
NSN 6110-00-081-0927
NSN 6150-01-288-0505
NSN 6320-00-405-2348
NSN 6130-00-470-8589
NSN 5855-01-100-3272
NSN 5855-01-138-4985
NSN 6220-01-215-2179
NSN 6135-00-764-8680
NSN 5920-01-288-6591
NSN 4140-01-553-8505