Special Features:

Nonmetallic material, circular shape with flatted edges on opposite ends, 2.794 in. W across flats, 3.120 in. Diameter of circle, 6 holes 0.203 in. Diameter equally spaced on 2.500 in. Diameter bolt circle 0.317 in. Diameter hole in center of circle, 0.020 in. Thk of material

Properties:

An item in the form of one or more thin flexible sheets normally designed to form a tight seal between chambers of a valve, and to transmit motion to a valve disk either directly or through a mechanical linkage. The surface of the item(s) may not be formed or molded to have a beaded or rolled edge, ribs, or any other raised surfaces. The item may contain bolt holes and/or a center hole. Excludes diaphragm, valve, special shaped and gasket.