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 6130-01-444-1371
NSN 5996-00-963-1352
NSN 5920-00-445-2777
NSN 5990-01-443-2931
NSN 7035-01-182-1086
NSN 5965-01-256-6745
NSN 5835-00-074-3700
NSN 6220-01-451-3056
NSN 7035-00-445-9657
NSN 6685-01-152-2846
NSN 5925-01-497-1732
NSN 6620-01-624-3933