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 5930-01-385-9380
NSN 5950-01-535-0099
NSN 5855-01-321-3881
NSN 7035-00-312-3055
NSN 5925-00-456-0651
NSN 5950-01-148-1940
NSN 6145-00-602-2253
NSN 5945-01-602-5957
NSN 6610-00-677-1728
NSN 5975-00-183-7691
NSN 5835-00-954-2833
NSN 6150-00-361-9880