A nonmetallic unthreaded item generally round in cross-sectional shape which, when placed on/in a machined-out portion of the threads of a screw or bolt, or inserted into the machined-out portion of the threads of a nut, locks the item, to which it is fixed, to the attached mating member and prevents loosening during excessive vibration. Excludes bolt, self-locking; nut, self-locking (as modified); screw, self-locking; and insert, screw thread.
NSN 5945-01-629-9492
NSN 5930-01-336-3116
NSN 6610-01-116-2527
NSN 6620-00-708-3323
NSN 5905-00-559-5715
NSN 7035-00-870-0290
NSN 5975-00-267-2770
NSN 5935-00-420-0438
NSN 5950-01-052-0339
NSN 7035-00-916-9380
NSN 5915-01-120-2165
NSN 2925-00-261-5800