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 6650-00-760-1385
NSN 5895-00-244-0943
NSN 5999-00-268-3022
NSN 6240-01-396-1622
NSN 5945-01-527-0936
NSN 5965-01-557-2862
NSN 6650-01-310-3437
NSN 5965-01-222-1420
NSN 5935-01-563-3011
NSN 6135-00-885-6003
NSN 6685-00-477-7177
NSN 6110-01-422-1572