A screw, (as modified) to which has been assembled one or more nonremovable washer(s).
NSN 6130-01-378-6419
NSN 5920-01-010-3293
NSN 5996-00-472-9157
NSN 6320-01-246-4390
NSN 5996-01-359-8719
NSN 6320-00-646-3311
NSN 5990-00-357-8103
NSN 6320-00-456-0836
NSN 5985-01-352-8067
NSN 6240-01-487-4386
NSN 6685-01-392-6138
NSN 5835-01-141-8823