Spiral Wound Flange Gasket For Flange ANSI Class 150 For Pipe Size 1 in Inside Diameter 1 1/4 in Outside Diameter 2 5/8 in Thickness 3/16 in Rim Stripe Color Gray Outside Rim Color Green 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 316L Inner Ring Material None