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 5925-00-220-6841
NSN 5920-01-444-5029
NSN 6685-00-089-7974
NSN 2925-01-374-2402
NSN 5915-01-198-9177
NSN 6610-01-132-6660
NSN 5895-01-276-8161
NSN 5910-01-039-7191
NSN 2925-00-446-8904
NSN 5945-01-593-8801
NSN 6320-01-021-6633
NSN 5915-01-078-5924