A soft metal or nonmetal sleeve, designed to mate with a pin-rivet. it may include an external wrenching facility which breaks off at a perdetermined torque to form a head.
NSN 6220-00-003-6371
NSN 5905-00-775-2395
NSN 6645-00-581-9239
NSN 5915-00-811-0585
NSN 6105-01-476-1671
NSN 6320-01-366-5157
NSN 5960-01-170-4057
NSN 6130-01-535-0430
NSN 5925-01-250-3925
NSN 6220-01-024-1106
NSN 2925-01-650-3412
NSN 6610-01-592-1551