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 5910-00-364-6995
NSN 7035-01-169-1166
NSN 4140-01-579-8352
NSN 5999-01-208-6149
NSN 5910-00-116-1116
NSN 5950-01-014-4905
NSN 6620-01-352-5640
NSN 5999-01-259-4448
NSN 5895-01-255-4548
NSN 5925-00-466-7308
NSN 5999-01-110-3513
NSN 5998-00-001-4642