A nut having a sleeve portion on its under side, which can be crimped or clinched to hold the item in place when inserted in a hole.
NSN 6320-00-174-1362
NSN 5915-01-113-5234
NSN 5996-01-565-5874
NSN 6150-01-300-8858
NSN 4140-01-149-4803
NSN 5999-01-249-4914
NSN 6150-00-578-7816
NSN 6105-01-275-1031
NSN 5999-01-654-4946
NSN 6320-00-701-0437
NSN 5975-00-913-5225
NSN 5935-01-563-8526