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 6135-01-215-1245
NSN 6685-01-113-6897
NSN 5945-00-869-5309
NSN 5999-01-519-8595
NSN 6145-01-268-5104
NSN 6150-01-605-2711
NSN 6105-00-249-3714
NSN 7035-01-509-9953
NSN 7035-00-574-4223
NSN 5895-01-123-9669
NSN 6685-01-439-1737
NSN 6650-01-391-6072