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 5855-01-095-5299
NSN 5895-01-502-0039
NSN 2925-00-994-8684
NSN 5960-01-262-0359
NSN 5930-01-329-9512
NSN 5915-00-780-1944
NSN 7035-01-357-0435
NSN 5935-00-322-7150
NSN 5930-00-244-0171
NSN 6685-00-061-4146
NSN 7035-01-231-2450
NSN 5915-00-988-0014