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 5910-01-561-0747
NSN 5950-00-345-9509
NSN 5910-01-145-3380
NSN 5950-01-492-5919
NSN 4140-00-477-1863
NSN 5905-01-487-6985
NSN 5895-01-142-1785
NSN 5905-01-509-0138
NSN 6610-00-776-3235
NSN 5996-00-358-6257
NSN 6220-01-431-6773
NSN 5965-00-424-9636