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 5999-01-605-1731
NSN 6320-00-164-4087
NSN 5990-01-386-5561
NSN 5985-00-221-1563
NSN 6145-00-805-3354
NSN 5905-01-261-8105
NSN 6145-01-340-1305
NSN 7035-00-922-5700
NSN 5975-01-613-3070
NSN 5945-01-157-9781
NSN 6220-01-437-5659
NSN 6685-00-600-9595