A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 6685-00-555-2299
NSN 6105-01-586-0341
NSN 5925-00-884-3426
NSN 5905-01-568-0261
NSN 5925-00-940-8600
NSN 6645-00-819-5045
NSN 6650-01-109-8783
NSN 5998-00-452-0329
NSN 5945-01-425-0270
NSN 5999-01-455-7614
NSN 6220-01-099-3429
NSN 7035-01-633-6645