A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 5910-01-485-3636
NSN 5920-01-538-2643
NSN 5998-01-337-7073
NSN 5990-01-419-0661
NSN 5996-01-180-5834
NSN 5965-01-009-2238
NSN 6105-00-893-6470
NSN 6145-01-174-2992
NSN 6620-01-015-2470
NSN 6130-00-992-2294
NSN 5895-01-384-0611
NSN 5996-00-054-1045