3/4 inch x 1/8 inch Black Iron Bushing
156 Available At All US Supply Locations

3/4 inch x 1/8 inch Black Iron Bushing – Engineered for High-Integrity Pipe Transitions
Black iron bushings are essential components for reducing pipe sizes in threaded piping systems, particularly in gas, water, and steam applications. The 3/4 inch x 1/8 inch Black Iron Bushing is manufactured for durability and pressure tolerance, making it suitable for professional-grade mechanical systems.
Application and Functional Benefits
- ✅ Threaded Reduction: Designed to join a 3/4 inch female threaded opening to a 1/8 inch male connection in a compact format.
- ✅ Rugged Iron Construction: Manufactured from malleable black iron, ideal for use in non-corrosive fluid and gas systems.
- ✅ Pressure Rating: Suitable for moderate-pressure systems when properly sealed with thread tape or joint compound.
- ✅ Heat Tolerance: Appropriate for use in high-temperature pipelines such as steam and compressed air lines.
Technical Specifications
- Material: Malleable black iron
- Size: 3/4 inch Male NPT x 1/8 inch Female NPT
- Connection Type: Tapered National Pipe Thread (NPT)
- Compliance: Meets ASTM A197 standards for malleable iron castings
Installation Notes
For optimal performance, install using standard pipe wrenches and ensure joints are sealed using an approved thread compound or PTFE tape. Bushing should not be over-torqued, as this may damage mating threads or cause cracking in the fitting. Installations in gas systems must comply with NFPA and local mechanical code requirements.
Common Use Cases
Black iron bushings are widely used across a variety of commercial and industrial settings:
- Natural gas and propane distribution lines
- Boiler and heating loop systems
- Non-potable water and air supply lines
- Equipment manifold transitions
Note:
Black iron fittings should not be used in potable water systems due to potential corrosion and scaling over time. For potable systems, brass or galvanized options should be specified.
Specifications
| Weight | 0.130000 |
|---|---|
| Brand | Non-Specified Brand |
| ADA Compliance | No |
| Height (inches) | 0.95 |
| Length (inches) | 1.1 |
| Width (inches) | 1.25 |
| Side A | 3/4" |
| Side B | 1/8" |
| Fitting Type | Bushing |
| Item Type | Bushings |
| MPN | 521-940 |
| Material | Black Iron |
| Product Family | Fittings |
| Item Returns | This item can be returned |
