Asc Engineered Solutions 1BX1.NB Hex Head Pipe Bushing

Product Description

The ASC ENGINEERED SOLUTIONS 1BX1.NB is a hex head pipe bushing designed to reduce a 1-1/4 inch male NPT thread down to a 1 inch female NPT thread in threaded pipe systems. Rated at 150 lb, it is constructed from malleable iron with a galvanized finish that resists corrosion in exposed or mildly harsh environments. The hex head design allows a wrench to seat cleanly for consistent torque during installation. Plumbers and pipefitters use this bushing in low-pressure gas, water, and steam distribution lines where a concentric threaded reduction is needed without additional fittings. Domestic manufacture means it meets standard dimensional requirements for NPT threaded fittings.

This bushing is suited for residential and light commercial plumbing and gas piping applications. It is commonly installed in supply lines, distribution headers, and branch takeoffs where pipe sizing transitions from 1-1/4 inch to 1 inch. The galvanized coating makes it appropriate for interior wet locations and moderate-exposure environments. It is not intended for use in systems requiring higher pressure ratings or specialized materials such as stainless or brass.

Key Features

• Hex head profile accepts standard wrench for reliable installation torque
• MNPT x FNPT end style provides a concentric threaded reduction in a single fitting
• 150 lb pressure class rating for low-pressure gas, water, and steam service
• Malleable iron construction offers durability and impact resistance over cast iron
• Galvanized finish provides corrosion resistance for wet and exposed interior environments
• Domestic manufacture to standard NPT dimensional tolerances

Compatibility

Designed as an OEM-style replacement or new-installation threaded bushing for 150 lb malleable iron pipe fitting systems using 1-1/4 inch to 1 inch NPT threaded connections.

Installation Notes

Installation is performed by licensed plumbers or pipefitters following applicable IPC or IFGC requirements for the service type. Shut off and depressurize the pipe system completely before removing or installing any threaded fittings. Apply an approved thread sealant or PTFE tape to the male threads before assembly. Do not over-tighten; use the hex flats to apply controlled wrench torque and avoid cracking the fitting body.

Technical Specifications

• Nominal Size: 1-1/4 x 1 inches
• End Style: MNPT x FNPT
• Pressure Rating: 150 lb
• Material: Malleable Iron
• Finish: Galvanized
• Head Style: Hex Head
• Origin: Domestic

Standard Information

• Brand: ASC ENGINEERED SOLUTIONS
• Manufacturer Part Number: 1BX1.NB