Spiral Wound Flange Gasket, For Flange ANSI Class 1,500, For Pipe Size 4 in, Inside Diameter 4 11/16 in, Outside Diameter 8 1/2 in, Thickness 1/4 in, Rim Stripe Color Gray, Outer Ring Material Carbon Steel, Minimum Operating Temperature -320 Degrees F, Maximum Operating Temperature 842 Degrees F, Spiral Winding Material Stainless Steel, Spiral Winding Stainless Steel Grade 304, Inner Ring Stainless Steel Grade Not Applicable, Standards ASME B16.20, ASME/ANSI, System of Measurement Inch