Bmi Usa 4645 Lead Free Brass Nipple 4.5 in Npt

Product Description

The BMI USA 4645 is a lead-free brass close nipple designed for threaded pipe assemblies in plumbing, hydronic heating, and light industrial piping systems. At 4.5 inches in length, this nipple serves as a short-run connector between fittings, valves, or equipment ports where a standard pipe section is not practical. The red finish aids in visual identification on the job. Constructed from brass, it delivers reliable corrosion resistance in potable water and general-purpose fluid handling applications. Installation is handled by licensed plumbers and pipefitters working on low-pressure water or fluid distribution systems.

This nipple is suited for residential and light commercial plumbing installations where lead-free brass fittings are required by code, including potable water supply lines, boiler connections, and manifold assemblies. The threaded ends accept standard NPT connections, making it a straightforward drop-in component in new construction or retrofit work. Its compact 4.5-inch body fits where longer pipe runs are not needed and where a direct fitting-to-fitting connection is the goal.

Key Features

• Lead-free brass construction meets potable water compliance requirements
• 4.5-inch length suitable for short-run threaded connections
• Red finish for quick visual identification in multi-line installations
• Standard NPT threaded ends for broad fitting compatibility
• Corrosion-resistant brass material for long service life in wet environments

Compatibility

Designed as an OEM-style replacement or new-installation component for standard NPT threaded plumbing systems requiring lead-free brass nipples.

Installation Notes

Installation is performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off the water supply and relieve system pressure before threading any fittings. Apply an appropriate thread sealant or PTFE tape to the male threads before making up the connection. Do not overtighten, as brass threads can gall or crack under excessive torque.

Technical Specifications

• Material: Brass
• Length: 4.5 inches
• Weight: 0.61 pounds
• Finish: Red
• Lead Free: Yes
• UPC: 777701046452

Standard Information

• Brand: BMI USA
• Manufacturer Part Number: 4645