Flange Gasket, Full Face, 1 1/4 in Pipe Size, 4 5/8 in Outside Dia., Bolt Holes 4, 1 5/8 in Inside Dia., Metal Detectable No, Material of Construction Aramid Fiber with EPDM Binder, 1/16 in Thickness, -100 Degrees to 390 Degrees Temp. Range (F), Color Dark Gray, Standards ASME B16.21