Spiral Wound Flange Gasket For Flange ANSI Class 300 For Pipe Size 8 in Inside Diameter 8 1/2 in Outside Diameter 12 1/8 in Thickness 3/16 in Rim Stripe Color Gray Outside Rim Color Yellow Filler Material Graphite Outer Ring Material Carbon Steel Minimum Operating Temperature -400 Degrees F Maximum Operating Temperature 842 Degrees F Spiral Winding Material Stainless Steel Spiral Winding Stainless Steel Grade 304 Inner Ring Material Stainless Steel