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 5945-01-457-0643
NSN 5960-01-487-6436
NSN 6105-01-170-1139
NSN 6110-00-287-9158
NSN 5925-00-798-6767
NSN 5930-01-519-8747
NSN 5960-01-215-0992
NSN 5935-01-157-9964
NSN 5945-01-383-8423
NSN 7035-01-510-8787
NSN 6150-01-516-7173
NSN 5998-01-143-5461