A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 6130-01-573-7416
NSN 5945-01-310-3277
NSN 5835-01-411-7050
NSN 6135-00-945-0015
NSN 5905-00-419-2843
NSN 5960-01-196-9203
NSN 6650-01-544-9137
NSN 6685-00-293-6620
NSN 6130-01-105-7021
NSN 5985-01-363-3814
NSN 5925-01-551-9134
NSN 5960-01-444-2205