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 5965-01-538-8795
NSN 6645-01-189-0275
NSN 6685-00-168-9735
NSN 5920-00-203-5938
NSN 6130-01-499-4812
NSN 6685-01-267-1861
NSN 5985-01-196-7896
NSN 6150-01-563-3104
NSN 7035-01-029-7221
NSN 6150-01-196-9623
NSN 6135-00-782-6988
NSN 5960-00-529-2704