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 6105-00-519-2983
NSN 5930-00-059-4990
NSN 6105-01-348-2974
NSN 5935-01-584-6381
NSN 6105-00-188-7433
NSN 5975-00-231-9499
NSN 6105-00-655-9610
NSN 5960-01-173-7956
NSN 5960-01-156-1396
NSN 6220-01-458-0909
NSN 2925-00-004-1278
NSN 5945-00-167-7544