Color gray or color blue
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 5998-00-932-5589
NSN 5905-00-562-0294
NSN 6650-00-981-9501
NSN 5855-01-364-1005
NSN 6135-01-433-2062
NSN 6650-01-436-1173
NSN 5975-01-191-1845
NSN 5999-01-008-2150
NSN 5895-00-806-8518
NSN 6645-00-943-9063
NSN 4140-01-555-6921
NSN 6105-01-594-2251