55 mm
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 5910-00-573-0169
NSN 6130-01-578-8453
NSN 5990-00-458-3113
NSN 6685-01-324-4710
NSN 2925-00-774-8247
NSN 6620-01-364-0195
NSN 7035-00-421-8710
NSN 2925-00-054-3550
NSN 5985-01-442-6237
NSN 6620-00-401-8489
NSN 5975-01-200-7710
NSN 6650-01-221-5367