The B&K 521-963HN is a 1-1/4-inch Male Iron Pipe (MIP) x 1/2-inch Female Iron Pipe (FIP) black iron hex bushing, designed to reduce pipe size in non-potable fluid and gas systems. As part of the ProLine Series, this fitting is engineered for strength, reliability, and long-term performance in industrial, mechanical, and fuel system applications.

Constructed from 150-lb class malleable iron, this hex bushing features a black finish for corrosion resistance and is not intended for potable water use. The hexagonal shape allows for easy installation with a wrench, and the threaded ends comply with ANSI/ASME B1.20.1 standards for secure, leak-resistant connections.

Rated for up to 500 PSI at 150°F, the 521-963HN is ideal for systems transporting lubricants, oils, greases, LP gases, natural gases (e.g., nitrogen, oxygen), steam, and diesel.

Key Features:

• Material: Malleable black iron for industrial-grade strength
• Finish: Black coating for corrosion resistance in non-potable systems
• Connection Type: 1-1/4" MIP x 1/2" FIP threaded ends
• Design: Hex bushing for reducing pipe size with easy wrench installation
• Seal Integrity: Relative softness of malleable iron ensures a tight, secure seal
• Thread Standard: ANSI/ASME B1.20.1 compliant
• Pressure Rating: Up to 500 PSI at 150°F
• Compliance: Meets ASTM and ASME standards
• Use Environment: Suitable for indoor and outdoor applications

Applications:

• Fuel Systems: Ideal for LP gas and natural gas distribution
• Industrial Piping: Used in systems transporting lubricants, oils, greases, and diesel
• Steam Lines: Compatible with low-pressure steam applications
• Compressed Air Systems: Provides reliable connections in pneumatic systems
• DIY & Fabrication Projects: Great for custom pipe furniture, shelving, and structural builds