Bmi Usa 4550 Brass Nipple 3/4 X 5 Inch Lead Free

Product Description

The BMI USA 4550 is a lead-free brass threaded nipple designed for use in potable water, plumbing, and fluid handling systems. This close-tolerance fitting measures 3/4 inch in diameter and 5 inches in length, providing a reliable threaded connection between pipes, valves, and fittings. Constructed from brass with a red finish, the 4550 delivers solid corrosion resistance in both hot and cold water applications. Licensed plumbers and pipefitters install this type of nipple as a standard transition or extension piece in residential and light commercial piping systems.

This nipple is suited for residential and commercial plumbing installations where a lead-free brass threaded connection is required. Common applications include water supply lines, HVAC hydronic systems, boiler connections, and general fluid distribution piping. The 3/4 inch thread size is one of the most common sizes in residential water service and pairs with standard NPT valves, unions, couplings, and tees. Its 5-inch body length makes it appropriate for short offset runs or connections across moderate gaps in piping layouts.

Key Features

• Lead-free brass construction meets requirements for potable water use
• 3/4 inch diameter x 5 inch length for standard offset and extension runs
• Red finish for quick visual identification in multi-material piping systems
• Threaded ends compatible with standard NPT fittings, valves, and couplings
• Lightweight at 0.48 pounds for easy handling during installation

Compatibility

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

Installation Notes

Installation is performed by a licensed plumber in accordance with local plumbing codes and IPC guidelines. Shut off the water supply and relieve system pressure before removing or installing any threaded fitting. Apply appropriate thread sealant tape or pipe compound to NPT threads before assembly. Do not overtighten, as brass threads can be damaged by excessive torque.

Technical Specifications

• Material: Brass
• Finish: Red
• Diameter: 3/4 inch
• Length: 5 inches
• Weight: 0.48 pounds
• Lead Free: Yes
• UPC: 777701045509

Standard Information

• Brand: BMI USA
• Manufacturer Part Number: 4550