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 2925-01-424-0235
NSN 5905-00-186-1289
NSN 5925-01-414-0522
NSN 6150-01-534-7428
NSN 6110-01-236-1295
NSN 5905-00-266-0948
NSN 5975-01-308-5059
NSN 5835-00-880-6477
NSN 5855-01-615-3566
NSN 6685-00-122-3873
NSN 5925-01-088-6863
NSN 6685-00-964-2633