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 5990-01-493-4039
NSN 6620-01-523-7818
NSN 6240-01-238-5374
NSN 5990-00-906-4840
NSN 5905-01-391-4983
NSN 4140-01-005-0154
NSN 5998-00-111-7996
NSN 6645-00-684-3424
NSN 5915-00-233-6346
NSN 4140-00-863-4828
NSN 5935-01-101-7272
NSN 5945-00-237-1836