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 5925-00-883-6011
NSN 5998-01-433-1814
NSN 5996-01-177-2848
NSN 5975-01-409-2948
NSN 5950-01-578-8337
NSN 5965-01-429-0881
NSN 6320-00-908-6841
NSN 5945-01-519-5560
NSN 4140-01-456-9471
NSN 5910-00-433-1399
NSN 2925-00-233-5644
NSN 4140-01-282-9947