A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 6650-00-839-2527
NSN 2925-00-827-2326
NSN 6145-01-263-7322
NSN 5910-01-542-0646
NSN 5945-00-269-3706
NSN 5950-01-033-4708
NSN 6645-01-080-6052
NSN 6685-00-905-8532
NSN 2925-00-017-9807
NSN 5996-01-371-9431
NSN 7035-00-541-8516
NSN 6110-01-448-1736