A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 6135-01-592-4139
NSN 5855-00-862-3345
NSN 5920-00-194-4049
NSN 5835-01-321-7895
NSN 5920-01-263-9590
NSN 6150-01-525-8028
NSN 6135-00-497-0491
NSN 5895-01-264-5260
NSN 6610-00-112-2698
NSN 5930-01-503-9422
NSN 5975-01-029-9682
NSN 6135-01-370-2599