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 2925-01-134-9175
NSN 2925-01-463-8856
NSN 5930-00-202-9213
NSN 6130-00-525-9271
NSN 6685-01-592-0709
NSN 5905-01-124-4210
NSN 7035-01-516-2329
NSN 5990-00-980-7808
NSN 7035-01-184-8905
NSN 5910-00-880-7676
NSN 5945-00-132-0134
NSN 6150-01-131-9436