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 5965-01-250-3214
NSN 5895-00-919-0413
NSN 5965-00-215-5866
NSN 2925-01-305-1370
NSN 5910-01-142-5815
NSN 5915-01-198-6265
NSN 6220-00-070-9986
NSN 5945-01-605-8898
NSN 6220-01-596-1414
NSN 5999-01-262-0444
NSN 5960-00-613-7452
NSN 6620-01-295-5341