A nut round in shape, whose outer surface or portion(s) is/are knurled. It may have provisions for external wrenching. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 7035-01-423-8343
NSN 6650-01-471-6476
NSN 6645-01-145-7357
NSN 5960-00-169-2610
NSN 6105-00-195-1273
NSN 2925-00-486-8640
NSN 6645-01-425-2330
NSN 5990-01-417-4402
NSN 5945-00-642-5755
NSN 6645-00-586-7198
NSN 6685-01-064-4384
NSN 6145-00-498-0851