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 5910-00-198-9779
NSN 5965-01-019-0939
NSN 5999-01-129-0099
NSN 6135-00-050-7189
NSN 5965-01-100-5283
NSN 2925-01-106-8871
NSN 6145-00-801-4621
NSN 6645-00-253-3906
NSN 6645-01-539-2335
NSN 5998-00-965-0593
NSN 5905-01-079-1347
NSN 5835-01-394-3812