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 6145-00-823-3080
NSN 6645-01-437-9017
NSN 5950-00-206-3213
NSN 5925-01-222-7441
NSN 6645-00-295-0625
NSN 6620-00-421-7509
NSN 5965-01-132-1427
NSN 6620-01-343-6671
NSN 5925-01-384-6147
NSN 5915-00-894-3825
NSN 5985-01-411-3050
NSN 5999-00-688-7805