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 5915-00-670-4435
NSN 6620-01-194-2626
NSN 2925-01-372-9455
NSN 6130-01-359-9779
NSN 5925-00-290-4451
NSN 6130-01-065-0541
NSN 6130-00-799-3806
NSN 5975-01-286-1478
NSN 5965-00-513-1352
NSN 5895-01-039-6971
NSN 5990-00-428-1895
NSN 6320-01-556-2011