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 6610-00-010-3085
NSN 5910-01-299-0375
NSN 5905-01-394-7269
NSN 5930-01-161-9956
NSN 6240-00-982-6748
NSN 5935-00-879-3453
NSN 5935-01-181-1440
NSN 6135-01-074-8220
NSN 5920-01-259-8616
NSN 5935-01-117-5246
NSN 5925-01-210-3889
NSN 2925-00-346-6968