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 5996-00-836-7393
NSN 5905-01-068-3379
NSN 6685-00-275-2722
NSN 6220-01-359-3009
NSN 6220-01-336-0130
NSN 5985-00-137-4328
NSN 5935-01-360-0035
NSN 6645-01-540-7989
NSN 5930-00-111-1053
NSN 5915-00-623-4788
NSN 5925-01-144-4909
NSN 4140-01-169-4671