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 5999-01-425-1377
NSN 5998-01-423-3221
NSN 5925-00-761-6812
NSN 5960-01-010-7903
NSN 5960-00-466-3523
NSN 7035-01-169-6551
NSN 5965-01-275-5472
NSN 5855-00-797-8217
NSN 5999-01-555-1148
NSN 5895-01-243-0000
NSN 5975-00-884-6663
NSN 5930-01-504-9396