A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5945-01-497-3105
NSN 4140-01-550-0022
NSN 5910-01-366-1894
NSN 5910-01-524-3641
NSN 5925-00-205-2767
NSN 5935-01-368-7338
NSN 6220-01-235-3891
NSN 5910-01-446-4666
NSN 6610-01-525-2252
NSN 5999-01-394-8363
NSN 5915-00-707-2297
NSN 6645-01-383-7362