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 5930-01-565-9019
NSN 5835-01-150-6084
NSN 5935-01-232-6564
NSN 6135-00-351-8606
NSN 5998-00-615-2763
NSN 5975-01-439-9636
NSN 6150-01-358-8130
NSN 6105-01-645-1033
NSN 6135-01-435-6503
NSN 5910-00-436-1302
NSN 5965-01-602-0471
NSN 6105-01-083-0464