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 5985-01-562-6803
NSN 6135-00-801-3493
NSN 6145-00-100-4358
NSN 6610-01-157-0426
NSN 5835-01-116-2369
NSN 5920-01-514-4095
NSN 5950-01-279-4095
NSN 5950-01-208-4612
NSN 5910-01-586-6819
NSN 6145-01-121-2843
NSN 6685-01-514-7413
NSN 6645-00-983-2046