1/2 inch x 4-1/2 inch Stainless Steel Nipple

1/2" x 4-1/2" Stainless Steel Nipple – Threaded for High-Durability System Integration

The 1/2" x 4-1/2" stainless steel nipple is designed for secure threaded connections in piping systems requiring superior corrosion resistance and mechanical strength. Manufactured to NPT thread standards, this fitting enables tight, leak-resistant seals in high-pressure or chemically exposed installations.

Fabricated from 304 or 316 stainless steel (verify alloy if critical to application), this nipple provides excellent durability in potable water, air, steam, and chemical systems. It is precision-machined for uniform wall thickness, concentricity, and threading, reducing fieldwork variability and installation time.

Performance Features

• ✅ Corrosion-Resistant Alloy – Suitable for both above-ground and concealed use in aggressive environments, including marine, wastewater, and industrial process lines.
• ✅ Fully Threaded NPT Ends – Complies with ANSI/ASME B1.20.1 for compatibility with steel, brass, or stainless female-threaded components.
• ✅ Machined Length – Precisely cut at 4-1/2" to meet specific spacing or offset requirements in tight or multi-branch assemblies.
• ✅ Pressure Rating – Commonly rated to 150 psi (or greater) depending on pipe schedule and installation parameters.

Technical Specifications

• Nominal Size: 1/2 inch
• Length: 4-1/2 inches
• Material: 304 or 316 Stainless Steel (specify as needed)
• Thread Type: National Pipe Thread (NPT) – both ends
• Wall Type: Schedule 40 unless otherwise noted
• Standards: Conforms to ASTM A733 for nipples and ASTM A312 for stainless pipe

Installation Guidelines

Use appropriate thread sealant or PTFE tape rated for the application. Avoid over-torquing during assembly to prevent thread galling, especially when mating stainless to stainless. Install per applicable plumbing, mechanical, or process code requirements.

Common Applications

This nipple is suited for pressure-rated supply lines, hydronic systems, process piping, and chemical delivery setups. It is frequently used in boiler systems, pump manifolds, and maintenance piping where dissimilar materials or precise lengths are required.

Material Insight

Stainless steel maintains structural integrity under thermal cycling and pressure fluctuations. Its smooth internal surface supports laminar flow and resists biofilm accumulation in water distribution systems.