No. 10 screw size
A washer or cone or disk shape with a centrally located hole, designed to accommodate a flat or oval head screw and provide additional bearing area on the material being fastened. It may or may not have a flush flange feature.
Classification: Washers other than lock washers, iron or steel
NSN 5950-01-351-5365
NSN 5910-01-351-0691
NSN 5975-00-955-2224
NSN 5945-01-050-9172
NSN 5985-00-336-5813
NSN 5945-00-546-2751
NSN 6150-01-347-6876
NSN 5996-00-814-7376
NSN 6650-01-363-6675
NSN 6685-00-310-4060
NSN 5999-01-383-7423
NSN 6130-00-466-2019