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 5925-00-958-6828
NSN 7035-01-364-0286
NSN 5999-01-658-4101
NSN 5985-00-361-8657
NSN 5855-01-545-0566
NSN 6650-00-698-5869
NSN 5920-01-649-8818
NSN 5925-00-175-4023
NSN 5835-01-228-4474
NSN 6645-00-494-3065
NSN 6135-01-174-3807
NSN 5965-01-448-1174