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 6650-01-195-3957
NSN 6105-01-305-7689
NSN 6645-00-955-7997
NSN 6610-01-476-7412
NSN 5835-01-464-7038
NSN 5855-01-339-1718
NSN 7035-00-541-8516
NSN 6150-01-008-1537
NSN 5935-00-563-0114
NSN 5996-01-600-0348
NSN 6130-01-166-2308
NSN 5950-00-345-7760