A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5999-00-101-2284
NSN 6685-01-181-3125
NSN 5835-00-145-8926
NSN 6135-01-598-9890
NSN 5910-01-461-1780
NSN 5950-01-605-1386
NSN 5950-01-423-1527
NSN 6150-01-211-7883
NSN 6135-00-919-1117
NSN 6145-01-634-0388
NSN 5990-01-089-9694
NSN 5945-00-733-8037