A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, slotted, hexagon.
NSN 5920-00-661-0840
NSN 5920-01-343-4701
NSN 5835-00-422-1441
NSN 5975-00-162-2083
NSN 5999-01-394-4919
NSN 6320-00-149-7570
NSN 6105-01-548-1656
NSN 5990-01-212-2037
NSN 6685-00-358-8331
NSN 5920-00-807-8774
NSN 5895-01-579-3513
NSN 5910-01-381-0369