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 5925-00-891-4079
NSN 5985-01-342-4800
NSN 5910-01-461-8165
NSN 5965-00-328-6884
NSN 5965-01-533-7687
NSN 5910-00-621-3249
NSN 5925-01-111-9456
NSN 2925-00-233-5644
NSN 6320-01-160-0416
NSN 5975-01-456-1572
NSN 5975-01-003-9803
NSN 6220-00-547-8807