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The ASC Engineered Solutions 818906778 is a black malleable iron threaded bushing used to reduce a 1-inch female pipe thread opening to a 3/8-inch male pipe thread. This type of hex bushing is a standard fitting in gas, air, and water piping systems where a reducer is needed between two threaded pipe connections. The black coating provides corrosion resistance suited for low-pressure gas and air lines. Licensed plumbers, pipefitters, and HVAC technicians install this fitting as part of new construction or service work on threaded iron pipe systems.
This bushing is sized at 1 inch by 3/8 inch and is manufactured as an import fitting. It is commonly installed in residential and light commercial piping systems, including natural gas supply lines, compressed air distribution, and hydronic heating piping. The fitting threads into any standard 1-inch female NPT port and accepts a 3/8-inch male NPT pipe or fitting on the outlet side.
Designed as an OEM-style replacement or service fitting for standard NPT threaded iron pipe systems requiring a 1-inch to 3/8-inch reduction.
Installation is performed by licensed plumbers, pipefitters, or HVAC technicians following applicable local codes and IFGC or IPC standards where relevant. Shut off all gas, air, or water supply and relieve system pressure before removing or installing any threaded fitting. Apply approved thread sealant or pipe tape to male threads before assembly. Do not overtighten malleable iron fittings, as cracking can occur.
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