Bmi Usa 4540 Brass Nipple 3/4 X 4 Inch Lead Free

Product Description

The BMI USA 4540 is a lead-free brass threaded nipple designed for use in potable water, hydronic, and general plumbing systems. Measuring 3/4 inch in diameter and 4 inches in length, this nipple provides a reliable threaded connection between pipe sections, valves, fittings, and equipment. Its brass construction resists corrosion and delivers long service life in both hot and cold water applications. The lead-free designation meets compliance requirements for drinking water systems. Licensed plumbers and pipefitters install this type of fitting during new construction, system retrofits, and repair work across residential and light commercial applications.

This nipple is suited for residential and commercial plumbing installations where a short, fixed-length threaded extension is needed. Common applications include connecting supply lines to valves, water heaters, boilers, manifolds, and fixtures. The 3/4 inch thread size is one of the most common in residential plumbing and hydronic heating, making this fitting widely applicable across standard system configurations.

Key Features

• Lead-free brass construction meets potable water compliance requirements
• 3/4 inch diameter with 4-inch overall length for fixed-length extensions
• Threaded ends for standard pipe thread connections
• Corrosion-resistant brass material for long-term durability in wet environments
• Red finish for easy identification
• Lightweight at 0.37 pounds for easy handling during installation

Compatibility

Designed as an OEM-style replacement or standard-use threaded nipple for 3/4 inch plumbing systems in residential and light commercial applications.

Installation Notes

Installation is performed by a licensed plumber in accordance with the International Plumbing Code (IPC) and applicable local codes. Shut off the water supply and relieve system pressure before making any threaded connections. Apply thread sealant tape or pipe dope to male threads before assembly to ensure a leak-free joint. Do not overtighten, as brass fittings can crack under excessive torque.

Technical Specifications

• Material: Brass
• Length: 4 inches
• Diameter: 3/4 inch
• Finish: Red
• Weight: 0.37 pounds
• Lead Free: Yes

Standard Information

• Brand: BMI USA
• Manufacturer Part Number: 4540