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 6105-00-567-3669
NSN 6220-01-189-7039
NSN 5905-01-440-7672
NSN 6240-01-462-5433
NSN 6620-01-085-8688
NSN 5855-00-832-9341
NSN 6145-00-705-6686
NSN 6620-01-015-2470
NSN 5855-01-632-5485
NSN 6610-01-499-8788
NSN 6110-01-437-4712
NSN 5960-00-311-8787