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The ASC Engineered Solutions 318911328 is a black cast iron flush bushing designed to reduce pipe thread sizes within a fitting or threaded opening. Flush bushings seat flush with the face of the fitting, keeping a clean, compact connection where a hex bushing would protrude. At 0.16 pounds, this fitting is lightweight for cast iron and sized at 1 inch by 1/2 inch. It is a standard component used by licensed plumbers and pipefitters working on threaded pipe assemblies in commercial and residential mechanical systems.
This flush bushing is suited for threaded pipe systems where a 1-inch female thread must be reduced to accept a 1/2-inch male thread connection. Typical applications include low-pressure water, gas distribution, and general piping assemblies where a flush-face reduction is preferred over a projecting hex bushing. The black finish is standard for gas-line and non-potable water piping applications.
Designed as an OEM-style replacement or new-installation fitting for standard NPT threaded pipe systems requiring a 1-inch to 1/2-inch reduction.
Installation is performed by licensed plumbers or pipefitters following applicable IPC or IFGC code requirements. Shut off and depressurize the pipe system before installing or removing any threaded fitting. Apply thread sealant or PTFE tape appropriate to the service type before threading the bushing into place. Do not overtighten; use a pipe wrench with care on cast iron to avoid cracking the fitting body.
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