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 6610-00-010-9714
NSN 5910-01-435-7248
NSN 5945-00-406-9520
NSN 6610-01-065-1073
NSN 5950-01-397-8082
NSN 5985-01-382-6538
NSN 5996-00-404-7813
NSN 6320-01-631-7828
NSN 5910-00-762-6406
NSN 5990-01-118-0151
NSN 6620-00-736-8457
NSN 5935-01-090-4128