B K Mueller 561-001HN Galvanized Close Nipple 1/4 Inch

Product Description

The B K Mueller Industries 561-001HN is a close-pattern galvanized steel pipe nipple in 0.25-inch nominal pipe size. A close nipple has threads running the full length of the fitting with only a small unthreaded center section, making it the shortest possible connection between two threaded fittings or ports. The galvanized finish provides corrosion resistance for use in water supply, gas distribution, and general mechanical piping systems. Plumbers, pipefitters, and HVAC technicians use this fitting where space is tight and a standard hex nipple will not fit. Each unit weighs approximately 0.2 pounds.

This close nipple is suited for residential and light commercial plumbing, HVAC piping, and industrial mechanical systems. It connects threaded pipe runs, valves, unions, and fittings in configurations where a minimal gap between components is required. Sold individually and also available in a package quantity of 10, making it convenient for service trucks and job-site stock.

Key Features

• Close-pattern length — threads meet at center, allowing minimum-distance connections
• Galvanized steel construction for corrosion resistance in wet and outdoor environments
• 0.25-inch nominal pipe size with standard NPT threading
• Lightweight at 0.2 pounds per fitting
• Available in single units or packages of 10 for bulk stocking

Compatibility

Designed as a standard NPT-threaded close nipple for use with 0.25-inch threaded pipe, valves, fittings, and mechanical components in plumbing and HVAC piping assemblies.

Installation Notes

Installation should be performed by a licensed plumber or qualified pipefitter in accordance with applicable local plumbing codes and IFGC requirements for gas applications. Shut off the water or gas supply and depressurize the line before installation. Apply thread sealant tape or pipe compound to the male threads before assembly. Use two wrenches when tightening to avoid stressing adjacent fittings or valves.