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 7035-01-411-6062
NSN 6620-01-022-9868
NSN 5965-01-503-0699
NSN 5915-01-387-4262
NSN 5999-00-689-2954
NSN 7035-01-017-2702
NSN 6650-01-649-0228
NSN 4140-01-598-7578
NSN 5985-01-406-4957
NSN 5920-01-332-1033
NSN 5996-01-367-2930
NSN 5915-01-347-4372