Quotes (0) All Categories > Washer Material Specifications > Polypropylene Washers > Advanced Search Advanced Search in Polypropylene Washers Unit of Measure Imperial Metric Both Specifications Material Polypropylene Outside Diameter (in) At Least : No More Than : Available Range: 0.092 to 4.357 Inside Diameter (in) At Least : No More Than : Available Range: 0.023 to 3.277 Thickness (in) At Least : No More Than : Available Range: 0.01 to 0.125 Description Our standard washers are made from Natural homopolymerPolypropyleneASTM D- 4101-0112FDA 21CFR177.1520 ( c)No UL rating Clear Cancel Advanced Search