2-1/2 inch x 1 inch Black Iron Bushing
34 Available At All US Supply Locations

2-1/2 Inch x 1 Inch Black Iron Bushing – Threaded Reducing Fitting
The 2-1/2 inch x 1 inch Black Iron Bushing is a threaded reducing fitting used to transition between larger and smaller nominal pipe sizes within piping systems. Commonly used in gas, steam, and water distribution networks, it provides a solid and pressure-rated solution where a reduction in pipe diameter is required within a threaded connection layout.
Product Features and Field Benefits
- ✅ Threaded NPT Design – Male NPT threads on the larger end and female NPT threads on the smaller end ensure compatibility with standard iron pipe fittings.
- ✅ Black Malleable Iron Construction – Offers robust mechanical strength for structural integrity in high-temperature and high-pressure environments.
- ✅ Corrosion Resistance – Black iron finish protects against scaling and surface deterioration under dry and low-moisture conditions.
- ✅ Reduced Profile – Compact form factor minimizes fitting footprint, enabling use in limited-clearance configurations.
Technical Specifications
- Material: Malleable black iron
- Connection Type: Male NPT (2-1/2 inch) x Female NPT (1 inch)
- Pressure Rating: Meets applicable ANSI/ASME B16.3 specifications for Class 150 fittings
- Application Range: Gas, oil, steam, and water (non-potable) systems
Installation Guidelines
This bushing should be installed using standard pipe wrenches with appropriate thread sealant (e.g., PTFE tape or thread compound) to ensure a leak-tight seal. Over-tightening should be avoided to prevent stress cracking or thread distortion. Proper alignment is essential for pressure-rated performance, especially in gas service installations.
Typical Applications
Used extensively in mechanical and industrial piping systems, this reducing bushing is suitable for use in:
- Gas distribution systems (natural gas, propane)
- Steam lines and condensate return systems
- Closed-loop hydronic heating systems
- Low-pressure air and water supply lines (non-potable)
Standards and Compliance
Manufactured in accordance with ANSI/ASME B16.3 and ASTM A197. Designed to work with pipe conforming to ASTM A53 or A106 specifications.
The 2-1/2 inch x 1 inch Black Iron Bushing delivers consistent, code-compliant performance where size reduction and pressure retention are required in threaded pipe systems. Its rugged construction and compatibility with standard NPT systems make it a practical choice for contractors working on demanding installations.
Specifications
| Weight | 0.990000 |
|---|---|
| Brand | Non-Specified Brand |
| ADA Compliance | No |
| Height (inches) | 1.6 |
| Length (inches) | 2.95 |
| Width (inches) | 3 |
| Side A | 2-1/2" |
| Side B | 1" |
| Fitting Type | Bushing |
| Item Type | Bushings |
| MPN | 521-995 |
| Material | Black Iron |
| Product Family | Fittings |
| Item Returns | This item can be returned |
