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 6135-01-116-3385
NSN 5996-01-607-1043
NSN 6130-00-538-4416
NSN 5999-00-946-8210
NSN 6130-01-634-0603
NSN 6610-01-474-5206
NSN 5950-00-350-8373
NSN 6110-00-833-2777
NSN 6240-01-528-7873
NSN 5990-01-065-0492
NSN 6645-00-892-1605
NSN 5985-01-024-9464