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 6650-01-273-1925
NSN 5950-00-377-9882
NSN 5945-00-409-6580
NSN 6240-00-998-7161
NSN 6620-00-394-1812
NSN 6150-01-574-5080
NSN 6685-00-978-2853
NSN 5920-00-950-4430
NSN 6150-01-358-2993
NSN 6650-01-112-0453
NSN 5915-00-165-2985
NSN 6135-01-171-9299