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.
Classification: Nuts of iron or steel
NSN 4140-00-557-7001
NSN 7035-01-103-6845
NSN 5935-01-028-0837
NSN 5835-01-266-4382
NSN 6105-01-287-6780
NSN 6240-00-209-1883
NSN 6145-01-146-4106
NSN 6145-01-510-8667
NSN 5905-00-233-2750
NSN 6620-01-488-4681
NSN 4140-00-361-4691
NSN 5895-01-403-2793