A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5960-01-163-8905
NSN 5996-00-790-2020
NSN 6105-01-197-7687
NSN 5930-00-110-1670
NSN 5960-01-005-2568
NSN 6685-01-218-8046
NSN 2925-01-097-0903
NSN 5925-01-241-0572
NSN 5920-00-892-2640
NSN 6150-01-634-0575
NSN 5990-01-443-2931
NSN 5996-01-205-3263