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 6650-01-495-1269
NSN 6685-00-301-9970
NSN 5910-01-359-8909
NSN 6620-01-343-6671
NSN 5965-01-448-9585
NSN 6240-01-386-5952
NSN 5910-01-130-1541
NSN 5999-00-647-4999
NSN 4140-01-500-2334
NSN 5965-01-472-7092
NSN 6130-01-565-1284
NSN 2925-01-506-6975