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 6610-00-181-7544
NSN 6645-00-269-2764
NSN 6105-00-531-0563
NSN 6685-00-886-8201
NSN 5930-01-139-4418
NSN 4140-01-006-3324
NSN 5990-00-247-0975
NSN 4140-01-272-3173
NSN 5855-00-797-8217
NSN 6130-01-556-9747
NSN 5960-01-415-3574
NSN 6320-01-021-6633