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 5985-01-176-6721
NSN 5945-00-280-1567
NSN 7035-00-631-3782
NSN 5999-01-605-0143
NSN 6645-00-527-7258
NSN 6650-01-398-7323
NSN 5920-01-225-0440
NSN 5975-01-314-5601
NSN 5905-00-867-0929
NSN 6110-01-562-6488
NSN 5920-01-572-8712
NSN 5990-00-362-1453