Asc Engineered Solutions 318905643 Steel Hex Bushing 3/4x3/8

Product Description

The ASC ENGINEERED SOLUTIONS 318905643 is a black steel threaded hex bushing used to reduce pipe thread sizes in plumbing, HVAC, and gas piping assemblies. The bushing steps down from a 3/4 inch male thread to a 3/8 inch female thread, allowing technicians to connect pipe or fittings of different sizes within the same run. Constructed from black steel, it is well suited for gas lines, steam systems, and other applications where black iron or steel pipe is standard. At 0.15 pounds, it is a compact, single-piece fitting that requires no special tools beyond a pipe wrench and thread sealant.

This hex bushing is used in residential and light commercial piping systems where a threaded reduction is needed between two pipe segments or at equipment connections. Common install scenarios include gas supply drops to appliances, branch connections in steam systems, and pipe-to-equipment adapters in mechanical rooms. Plumbers, pipefitters, and HVAC technicians install this type of fitting as part of standard threaded pipe assemblies.

Key Features

• Black steel construction suitable for gas, steam, and oil piping systems
• Threaded hex bushing design reduces 3/4 inch male thread to 3/8 inch female thread
• Hex body allows secure wrench engagement during installation
• Lightweight at 0.15 pounds for easy handling and stocking
• Compatible with standard NPT threaded pipe and fittings

Compatibility

Designed as an OEM-style replacement or standard threaded fitting for use with 3/4 inch male NPT and 3/8 inch female NPT threaded pipe assemblies in gas, steam, or mechanical piping systems.

Installation Notes

Installation is performed by licensed plumbers or pipefitters following applicable code requirements such as the IFGC or IPC. Always shut off and depressurize the pipe system before disassembling or adding fittings. Apply an appropriate thread sealant or listed pipe thread compound to all threaded connections before assembly. Do not overtighten, as black steel fittings can crack under excessive torque.

Technical Specifications

• Material: Black Steel
• Fitting Size: 3/4 inches x 3/8 inches
• Type: Threaded Hex Bushing
• Weight: 0.15 pounds

Standard Information

• Brand: ASC ENGINEERED SOLUTIONS
• Manufacturer Part Number: 318905643