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 6685-01-631-2998
NSN 6610-00-753-2281
NSN 6320-01-111-0221
NSN 5905-00-679-9970
NSN 6240-01-633-9357
NSN 6620-00-020-8385
NSN 5905-00-798-2343
NSN 5950-00-618-0024
NSN 6240-00-897-1209
NSN 5930-01-618-7948
NSN 6685-00-116-8073
NSN 6150-01-606-7417