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 7035-01-056-5350
NSN 5910-01-193-5464
NSN 5930-01-037-8539
NSN 6110-01-037-4863
NSN 6685-01-475-8932
NSN 5925-01-024-7367
NSN 2925-01-432-8452
NSN 6110-00-503-1105
NSN 5915-01-526-1867
NSN 5905-01-025-9581
NSN 6650-01-549-4383
NSN 6150-01-445-9688