A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5930-00-525-3545
NSN 6110-01-037-7368
NSN 5930-00-392-3985
NSN 5965-01-482-9711
NSN 4140-00-246-4969
NSN 5925-01-571-9963
NSN 6110-01-440-9158
NSN 5965-00-100-1291
NSN 5985-01-400-5948
NSN 5895-01-621-4789
NSN 2925-00-211-4469
NSN 6610-00-580-5997