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 5930-01-472-3238
NSN 5990-01-303-6110
NSN 7035-01-245-7973
NSN 6135-01-560-8130
NSN 5895-00-661-1773
NSN 6645-01-590-5534
NSN 5920-01-516-9370
NSN 5895-01-088-7751
NSN 5905-01-029-2213
NSN 6135-00-269-5843
NSN 5985-01-650-1811
NSN 5835-01-608-8868