No other part numbers with same form, fit, and function found.
A locking device which is serrated on the inside and outside diameters. It may have outer serrations omitted on one or two sides for close edge installation. The inner serrations engage the mating serrations of bolts, inserts, nuts, studs or similar items to be locked in place. The outer serrations broach their way into parent material when driven or pressed into place.
NSN 5999-01-138-4977
NSN 5915-00-816-0673
NSN 5835-00-140-8646
NSN 6645-01-241-9483
NSN 5998-00-841-2147
NSN 5855-01-472-3963
NSN 6220-01-270-2298
NSN 6135-01-643-3114
NSN 6110-00-574-6096
NSN 5910-00-401-3110
NSN 6320-00-310-1080
NSN 4140-00-438-2485