1 inch x 4-1/2 inch Brass Nipple

1" x 4-1/2" Brass Pipe Nipple – Precision Machined for Threaded Pipe Systems

The 1" x 4-1/2" Brass Pipe Nipple is a straight, externally threaded fitting used to connect two female-threaded pipe or fittings in potable water, gas, or hydraulic systems. Manufactured from lead-free brass, this component provides excellent corrosion resistance and mechanical strength in a wide range of applications, including pressure-rated installations.

Suitable for both residential and commercial plumbing systems, this nipple is machined to ANSI B1.20.1 standards, ensuring consistent thread engagement and secure sealing when installed with thread sealant or PTFE tape. Its uniform construction provides durability in both indoor and outdoor environments, including systems exposed to varying water quality and temperature fluctuations.

Key Performance Characteristics

• ✅ Material: Lead-free brass, compliant with federal low-lead regulations (NSF 61/NSF 372)
• ✅ Thread Standard: NPT (National Pipe Tapered), ensuring proper engagement and leak prevention
• ✅ Length: 4-1/2 inches end-to-end, with full-thread design for maximum thread contact
• ✅ Corrosion Resistant: Suitable for use in potable water systems, with excellent resistance to dezincification and chlorinated water exposure
• ✅ Working Pressure: Capable of handling standard pressure ratings for water and low-pressure air or gas systems

Installation Guidance

Install using approved thread sealant compatible with brass and system fluid. Avoid over-torquing to prevent thread deformation. Ensure that the mating components are clean and aligned to avoid cross-threading. Use in conjunction with compatible brass or approved metal fittings in accordance with local and national plumbing codes.

Typical Applications

The 1" x 4-1/2" brass nipple is widely used in water distribution lines, pump connections, hot and cold water systems, and low-pressure gas piping. Commonly employed in maintenance, retrofits, and system extensions where reliable threaded connectivity is required.

Regulatory Note

Lead-free brass components are mandated for potable water applications in all U.S. jurisdictions per the Safe Drinking Water Act (SDWA). This nipple meets those requirements, making it suitable for installations in public and private systems.

For professional-grade reliability and compliance in fluid handling systems, the 1" x 4-1/2" brass nipple delivers consistent performance where secure threaded connections are essential.