This assembly consists of a circular sanitary sewer manhole cover and frame with a total weight of 270 pounds, comprising a 130-pound cover and a 140-pound frame. The cover features one-inch high raised lettering and a decorative pattern. The frame has a 31 1/2-inch outer diameter with a 24-inch clear opening, and the cover has a 25 1/4-inch diameter. The assembly includes machined surfaces at the contact point between the cover and the frame to ensure a precise fit. The overall height of the frame is 4 1/2 inches, with the cover thickness measuring 1 3/8 inches at the center and 1 1/8 inches at the edge.
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