Special Features:

Has twelve equally spaced bolt holes around circumference of external flange with bolt circle diameter of 4.500 in.; six bolt holes have diameter of 0.422 in. And diameter of 0.452 in.; six bolt holes have diameter of 0.557 in. And diameter of 0.572 in.; different size bolt holes are equally distributed

Properties:

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).