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 5905-01-487-8868
NSN 5996-00-909-1054
NSN 6135-01-101-5039
NSN 6685-00-146-2308
NSN 6105-00-302-8239
NSN 5935-01-141-9647
NSN 6105-01-512-8752
NSN 7035-00-803-3056
NSN 6650-00-549-5672
NSN 2925-00-471-1128
NSN 5835-00-804-0569
NSN 6145-01-599-6244