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 5895-01-634-0630
NSN 6240-01-559-0684
NSN 7035-01-537-2644
NSN 5925-00-345-7746
NSN 5998-00-056-0281
NSN 6620-01-542-9999
NSN 5998-01-323-6597
NSN 5950-01-334-6855
NSN 6135-00-351-8606
NSN 5915-01-069-2775
NSN 6240-01-266-3655
NSN 5930-01-359-3310