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 5975-01-368-6742
NSN 5998-01-579-5852
NSN 6130-01-659-8366
NSN 5950-01-595-6830
NSN 6650-00-195-7519
NSN 5910-01-487-5387
NSN 6650-00-006-9650
NSN 6320-01-370-4218
NSN 6685-00-248-6880
NSN 5996-01-381-5313
NSN 6130-00-097-0395
NSN 5999-00-518-1007