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 5998-01-608-3771
NSN 6685-00-921-1040
NSN 5990-01-482-5950
NSN 5925-01-262-9698
NSN 6620-01-224-4985
NSN 7035-01-422-9483
NSN 5960-01-323-6432
NSN 5999-01-451-7483
NSN 5960-01-531-9108
NSN 5990-01-419-0661
NSN 5960-01-123-8775
NSN 6145-01-556-8015