A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5998-00-633-5169
NSN 5920-00-579-8434
NSN 6105-01-043-6768
NSN 5930-00-291-5400
NSN 6610-01-298-2649
NSN 5915-00-931-6850
NSN 6645-01-024-8199
NSN 6105-01-316-9921
NSN 5960-00-111-4305
NSN 6320-01-358-8069
NSN 6130-01-573-5057
NSN 6150-01-658-8168