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 5910-00-366-6900
NSN 5965-01-469-2504
NSN 6135-01-576-9616
NSN 6620-01-401-5356
NSN 5975-00-894-1125
NSN 5920-01-349-0012
NSN 5925-01-411-6028
NSN 6130-00-654-5833
NSN 5990-00-333-6210
NSN 5855-01-384-3314
NSN 6620-01-165-3784
NSN 5930-00-799-4372