0.214" hole diameter 9.750" overall length 6.750" overall width 16 bolt hole quantity special cross-sectional shape style.metal bars 0.075 inch thk x 0.235 inch wide welded on edge to form a frame 7.62 inch lg x 4.62 inch wide to serve as an inside retainer to position the 0.31 inch wide x 0.18 inch thk rfi gasket materiel paint surface treated non-circular