A nut having a flat bearing surface and 6 flat sides with slots in its upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, castellated, hexagon.
NSN 4140-00-643-0115
NSN 6135-00-803-3012
NSN 5925-01-418-4541
NSN 5920-01-041-7347
NSN 6220-01-181-5854
NSN 5930-00-400-8403
NSN 6145-00-596-8447
NSN 5835-01-367-4330
NSN 6150-00-935-3317
NSN 6240-01-549-3531
NSN 4140-01-577-3785
NSN 2925-01-337-2508