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 4140-01-295-4287
NSN 5915-01-514-7136
NSN 5965-00-020-1951
NSN 5975-00-956-1594
NSN 6150-01-226-1406
NSN 5985-01-194-5736
NSN 5835-00-905-7165
NSN 5935-01-601-9158
NSN 5945-01-064-0129
NSN 5930-01-226-3673
NSN 6105-00-929-4385
NSN 5945-00-115-3594