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 5835-00-969-5771
NSN 2925-00-933-0200
NSN 6610-01-326-8660
NSN 5835-01-397-8801
NSN 5925-01-390-7621
NSN 5999-01-182-5447
NSN 5855-01-125-9167
NSN 5996-01-475-5728
NSN 6610-00-407-4295
NSN 5925-01-527-8569
NSN 5905-00-295-3500
NSN 5915-01-167-4739