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 5996-01-357-7535
NSN 5996-01-219-9512
NSN 5920-01-437-0333
NSN 5910-01-613-8842
NSN 5935-01-196-6179
NSN 5915-01-208-6494
NSN 5998-01-157-9354
NSN 5985-01-542-9490
NSN 6610-01-044-9351
NSN 6645-01-317-6071
NSN 5925-01-479-4984
NSN 6220-01-557-1776