A cylindrical-shaped nut, internally and externally threaded, with a flanged cone or ball seat and a square wrenching head. The internal threads are used to secure the inner wheel and the external threads receive the outer wheel securing nut.
Classification: Nuts of iron or steel
NSN 6650-01-128-8438
NSN 4140-01-648-9450
NSN 7035-01-310-2587
NSN 5950-01-069-3861
NSN 5910-01-304-0359
NSN 2925-00-467-7150
NSN 6685-00-661-2347
NSN 6150-01-382-1551
NSN 6240-00-958-7626
NSN 6650-01-564-0665
NSN 6110-01-618-7462
NSN 6610-01-473-5678