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 6145-00-689-9339
NSN 5930-01-484-4362
NSN 6150-01-519-8723
NSN 6685-01-245-4462
NSN 5996-01-005-6287
NSN 6320-00-336-9123
NSN 6610-01-461-8180
NSN 5996-01-483-1858
NSN 6685-01-390-3859
NSN 5999-00-761-6062
NSN 6150-01-129-8190
NSN 6685-00-891-9026