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 5998-01-307-6495
NSN 5945-00-686-7001
NSN 5935-01-275-2279
NSN 5960-00-081-0160
NSN 5985-01-328-8878
NSN 6110-01-366-6952
NSN 2925-01-083-3986
NSN 6320-00-242-3300
NSN 5925-01-091-2756
NSN 6620-01-358-0205
NSN 5915-01-564-5056
NSN 5895-01-555-8544