A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 6320-00-218-6105
NSN 5930-01-578-6075
NSN 5855-01-260-7445
NSN 6105-00-756-9919
NSN 5965-01-503-5755
NSN 5905-01-561-5032
NSN 5935-01-399-5297
NSN 6220-01-168-7773
NSN 5915-00-780-7937
NSN 6610-01-425-1523
NSN 6240-00-479-5057
NSN 5905-01-246-0074