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 6685-01-267-5726
NSN 5925-01-518-4100
NSN 6320-01-384-3850
NSN 5915-00-079-1011
NSN 6240-01-093-2131
NSN 5985-00-784-0893
NSN 5930-00-275-0466
NSN 6645-01-607-9104
NSN 5895-01-315-6276
NSN 5925-01-099-0974
NSN 5975-00-872-7532
NSN 5935-00-691-9149