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 5996-01-097-3068
NSN 5999-01-568-0529
NSN 5915-01-356-5769
NSN 6645-01-426-8621
NSN 6145-01-157-3488
NSN 5960-00-654-7300
NSN 5835-01-123-8305
NSN 5998-01-135-7023
NSN 5855-01-375-6690
NSN 5950-01-533-5670
NSN 5990-01-054-3332
NSN 5945-01-112-0734