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 5895-00-184-6135
NSN 5990-01-032-0710
NSN 6110-01-207-2748
NSN 5905-00-917-3621
NSN 5965-00-156-8562
NSN 5915-01-167-8506
NSN 5945-01-364-8496
NSN 5945-01-270-1104
NSN 5930-01-448-5611
NSN 7035-01-528-0025
NSN 7035-01-400-3666
NSN 5998-01-352-5722