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 5905-00-078-2446
NSN 5996-01-471-7315
NSN 5935-00-759-8277
NSN 5960-00-569-9534
NSN 5998-00-798-2268
NSN 6105-01-465-3147
NSN 6145-01-328-3707
NSN 6610-01-588-9431
NSN 6105-00-379-2402
NSN 5985-01-127-6098
NSN 6110-01-372-7842
NSN 6135-01-542-5902