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 6150-01-495-3764
NSN 6130-01-025-5995
NSN 6650-01-512-1930
NSN 6150-01-180-3813
NSN 5975-00-859-9906
NSN 5960-00-079-5711
NSN 5945-01-026-9393
NSN 6240-01-343-3022
NSN 6240-01-104-5085
NSN 2925-01-074-9102
NSN 6610-01-099-6186
NSN 7035-00-541-8516