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 5996-00-686-8818
NSN 6685-00-415-0899
NSN 5945-00-161-5109
NSN 6685-01-444-1496
NSN 6240-00-253-7611
NSN 5915-01-398-9831
NSN 5985-00-727-0482
NSN 5910-01-182-1492
NSN 5905-01-260-1320
NSN 6620-00-472-5146
NSN 6650-01-022-9523
NSN 5990-00-395-5703