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 2925-00-258-9786
NSN 5905-01-648-4383
NSN 5950-01-184-1486
NSN 5998-01-066-3239
NSN 5905-01-203-4754
NSN 5855-00-610-4052
NSN 6685-01-458-4407
NSN 5945-01-455-5308
NSN 5920-00-930-4063
NSN 5910-01-268-4347
NSN 6220-01-438-1088
NSN 5965-01-477-0015