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 5895-01-435-1398
NSN 5985-00-156-1635
NSN 5999-01-100-2586
NSN 6105-01-541-2671
NSN 6650-01-207-2905
NSN 5920-00-359-9771
NSN 5990-00-851-4363
NSN 6240-01-633-9357
NSN 5999-01-215-0194
NSN 5855-01-448-5464
NSN 6645-01-323-1956
NSN 5895-01-411-7220