A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5999-00-834-1270
NSN 5935-00-811-8869
NSN 5960-00-343-0852
NSN 6220-00-679-5629
NSN 5999-01-522-7783
NSN 5999-01-512-8678
NSN 2925-00-580-4931
NSN 5950-01-117-0540
NSN 6240-01-068-8828
NSN 6145-01-412-5385
NSN 5985-01-142-2821
NSN 5985-00-299-0063