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 6145-01-359-4691
NSN 2925-01-107-7939
NSN 6130-00-682-3350
NSN 5985-01-647-1145
NSN 6645-00-168-0781
NSN 5996-01-224-5515
NSN 6145-00-468-3583
NSN 6130-01-122-8908
NSN 2925-01-239-6044
NSN 5930-00-718-1024
NSN 5925-01-499-6125
NSN 6320-01-573-6490