A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5920-01-369-6385
NSN 5985-00-280-8057
NSN 6150-01-620-1576
NSN 4140-01-355-9707
NSN 5920-01-282-3723
NSN 5915-01-441-2982
NSN 5985-01-548-9573
NSN 5999-00-175-8465
NSN 5910-00-401-6575
NSN 5990-01-271-1628
NSN 6220-00-276-2785
NSN 5925-01-141-6688