Nut only has rockwell hardness of rc 46.0
A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 5920-01-488-9390
NSN 5855-01-100-3272
NSN 6145-01-443-4120
NSN 5855-01-634-0259
NSN 6240-00-274-4028
NSN 5895-01-519-4572
NSN 7035-00-585-2113
NSN 6130-01-435-4424
NSN 6645-01-625-9422
NSN 6320-01-388-3125
NSN 5965-01-559-1898
NSN 6620-01-168-8450