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 6685-00-542-6608
NSN 6130-01-476-2835
NSN 5965-01-563-0489
NSN 5985-00-277-0575
NSN 2925-00-947-9814
NSN 7035-00-535-8109
NSN 6135-00-057-2005
NSN 6240-01-323-7765
NSN 5935-01-463-0871
NSN 5996-01-455-2198
NSN 6645-00-898-4316
NSN 5945-01-186-0809