Asc Engineered Solutions 1DX1.NB Hex Head Pipe Bushing

Product Description

The ASC Engineered Solutions 1DX1.NB is a galvanized cast iron hex head pipe bushing designed to reduce a 1-1/2 inch male NPT connection down to a 1 inch female NPT connection. Rated at 125 lb, this bushing is manufactured domestically and provides a durable, corrosion-resistant fitting for threaded pipe assemblies. The hexagonal head allows for wrench engagement during installation and removal. Plumbers and pipefitters use this fitting in water supply, drainage, and general-purpose piping systems where a threaded reduction is required between two pipe sizes.

This bushing is suited for residential and light commercial plumbing installations where galvanized fittings are specified. It is commonly used in water distribution lines, gas piping systems, and industrial piping where iron pipe thread connections are standard. The MNPT x FNPT configuration allows it to thread directly into a female-threaded fitting or pipe on the larger end while accepting a male-threaded pipe or fitting on the smaller end.

Key Features

• 1-1/2 inch MNPT inlet reduces to 1 inch FNPT outlet for standard threaded pipe reduction
• Cast iron construction with galvanized finish for corrosion resistance
• 125 lb pressure class rated for general-purpose plumbing and piping service
• Hex head design allows secure wrench engagement during installation
• Domestic manufacture

Compatibility

Designed as an OEM-style replacement or new-installation fitting compatible with standard 1-1/2 inch and 1 inch NPT threaded pipe systems using 125 lb class iron fittings.

Installation Notes

Installation is performed by licensed plumbers or pipefitters following applicable IPC and IFGC code requirements for the piping system type. Apply thread sealant or PTFE tape to the male threads before assembly and tighten using a pipe wrench on the hex head. Shut off water or gas supply and depressurize the line before installing or removing any threaded fitting. Do not over-tighten, as cast iron fittings can crack under excessive torque.

Technical Specifications

• Nominal Size: 1-1/2 x 1 inches
• End Style: MNPT x FNPT
• Pressure Rating: 125 lb
• Material: Cast Iron
• Finish: Galvanized
• Head Style: Hex Head
• Origin: Domestic

Standard Information

• Brand: ASC Engineered Solutions
• Manufacturer Part Number: 1DX1.NB