Merit Brass 4006-4800 Stainless Steel Pipe Nipple 3/8 in Sch 40

Product Description

The MERIT BRASS 4006-4800 is a welded stainless steel pipe nipple sized for 3/8 inch pipe and manufactured to Schedule 40 wall thickness. Produced from Grade 304/304L stainless steel, it delivers solid corrosion resistance in plumbing, process piping, and mechanical system applications. The dual-grade 304/304L designation means it meets both standard and low-carbon requirements, making it suitable for environments where post-weld corrosion resistance is a concern. Licensed plumbers, pipefitters, and mechanical contractors install this type of nipple as a standard threaded connector between fittings, valves, and equipment in a wide range of systems.

This nipple is suited for residential and commercial plumbing, HVAC hydronic systems, industrial process lines, and similar applications that call for a corrosion-resistant threaded steel connector. The Schedule 40 wall thickness makes it appropriate for moderate-pressure service in water, steam, and compatible fluid systems. Its stainless construction makes it a common choice in corrosive or wet environments where carbon steel nipples would be prone to rust or chemical attack.

Key Features

• Grade 304/304L stainless steel construction for corrosion resistance in wet and chemical environments
• Welded construction to Schedule 40 wall thickness for moderate-pressure service
• 3/8 inch pipe size for standard threaded connections to compatible fittings and valves
• Dual-grade 304/304L designation meets low-carbon requirements for post-weld corrosion resistance
• UNSPSC Code 40173300 for streamlined procurement and catalog matching

Compatibility

Designed as an OEM-style replacement or standard component for threaded 3/8 inch stainless steel piping systems using Schedule 40 fittings and valves.

Installation Notes

Installation is typically performed by a licensed plumber or pipefitter using appropriate pipe wrenches and thread sealant rated for the service fluid. Shut off system pressure and drain the line before removing or installing any threaded nipple. Apply thread sealant or PTFE tape per manufacturer instructions and applicable plumbing code requirements such as the IPC or IFGC. Avoid over-torquing threaded stainless connections, as galling of stainless threads can occur without proper anti-seize or sealant.