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 7035-01-132-7209
NSN 7035-00-437-7950
NSN 6150-01-332-4727
NSN 5945-00-930-1490
NSN 6220-01-020-8703
NSN 5910-00-403-2126
NSN 6110-00-925-4281
NSN 5996-00-063-2723
NSN 6105-00-759-1240
NSN 5960-00-326-9713
NSN 6220-00-707-5044
NSN 5960-00-107-3914