GASKET, SPIRAL WOUND: TYPE SEAT, FILLER INSIDE DIAMETER 459.4 X 431.6 MM, FILLER OUTSIDE DIAMETER 459.4 X 431.6 MM, FILLER THICKNESS 4.5T, WINDING MATERIAL SS 316, FILLER MATERIAL GRAPHITE, INNER RING INSIDE DIAMETER 459.4 X 431.6 MM, INNER RING THICKNESS 4.5T, INNER RING MATERIAL 316 X GRA, OUTER RING OUTSIDE DIAMETER 459.4 X 431.6 MM, OUTER RING THICKNESS 4.5T, OUTER RING MATERIAL 316 X GRA, SHAPE CIRCLE, APPLICATION CONTROL VALVE, FFT:, MNFR: IMI, DRAWING H219019 REV: D ITEM NO: 9, SPR SF4-IN-003 REV: UNK ITEM NO: 133