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.
Classification: Nuts of iron or steel
NSN 5999-01-425-1879
NSN 5975-01-378-8059
NSN 2925-01-104-8163
NSN 4140-00-406-0356
NSN 6685-01-346-1381
NSN 5920-01-101-6627
NSN 6685-00-630-3143
NSN 5990-01-370-5684
NSN 5985-00-111-3503
NSN 6650-01-471-2171
NSN 5985-01-510-2573
NSN 6645-01-239-4619