3/8 inch x 4-1/2 inch Chrome-Plated Brass Nipple

3/8" x 4-1/2" Lead-Free Brass Pipe Nipple – Threaded Component for Potable Water Systems

The 3/8" x 4-1/2" Lead-Free Brass Nipple is a straight pipe fitting with male National Pipe Thread (NPT) ends, designed for connecting female-threaded fittings or extending pipe runs in non-corrosive water and fluid systems. Fabricated from certified lead-free brass, this fitting is suitable for potable water lines and complies with modern plumbing codes across residential, commercial, and light industrial applications.

With uniform wall thickness and machined threads, the nipple ensures consistent sealing performance under operating conditions typically found in low- to moderate-pressure fluid delivery networks. Its corrosion resistance and dimensional stability make it a durable component in temperature-variable service environments.

Key Product Features

• ✅ Lead-Free Brass Construction: Complies with NSF/ANSI 61 and 372 standards for drinking water system safety.
• ✅ Threaded Male NPT Ends: Precision-machined threads on both ends conform to ANSI B1.20.1 for compatibility with standard pipe and fittings.
• ✅ Corrosion Resistance: Suitable for use in water, air, and non-aggressive fluid systems where long-term integrity is required.
• ✅ 4-1/2" Length: Ideal for bridging connections where exact-length extensions are necessary between valves or fixtures.

Technical Specifications

• Nominal Pipe Size: 3/8 inch
• Length: 4-1/2 inches (overall including threads)
• Material: Lead-Free Brass (typically C69300 or equivalent)
• Thread Standard: ANSI/ASME B1.20.1 – NPT Tapered Threads
• Certifications: NSF/ANSI 61 and 372 for potable water systems

Installation Guidelines

Apply approved thread sealant or PTFE tape to male threads before installation to ensure a watertight connection. Do not overtighten; torque should be applied using standard hand tools in accordance with best practices to avoid thread damage. Pressure test the system per code requirements before putting into service.

Common Applications

This lead-free brass nipple is used in potable water distribution, plumbing fixture hook-ups, hydronic heating manifolds, and equipment connections. It is well-suited for systems requiring compact, corrosion-resistant pipe extensions or rigid connections between female-threaded components.

Code Compliance Note

Lead-free brass fittings are mandated for use in potable water systems under the U.S. Safe Drinking Water Act and must meet local plumbing code standards. This fitting is certified for such use when installed in accordance with manufacturer and code requirements.

The 3/8" x 4-1/2" Lead-Free Brass Nipple provides a secure, code-approved threaded connection for potable water and general fluid systems. Its reliable material composition and standardized threading support consistent performance across a wide range of mechanical and plumbing installations.