Spiral Wound Flange Gasket For Flange ANSI Class 600 For Pipe Size 4 in Inside Diameter 4 3/4 in Outside Diameter 7 5/8 in Thickness 3/16 in Filler Material Graphite Outer Ring Material Carbon Steel Minimum Operating Temperature -300 Degrees F Maximum Operating Temperature 1 200 Degrees F Spiral Winding Material Stainless Steel Spiral Winding Stainless Steel Grade 304 Inner Ring Stainless Steel Grade Not Applicable Standards ASME B16.21 Resistance Properties Chemical-Resistant