Merit Brass 4004-3600 Ss Pipe Nipple 1/4 in Grade 304 Sch 40

Product Description

The MERIT BRASS 4004-3600 is a Grade 304/304L stainless steel pipe nipple designed for use in fluid handling, plumbing, and industrial piping systems. Manufactured with a welded construction to Schedule 40 wall thickness, this 1/4 inch nipple provides reliable performance in corrosive or high-moisture environments where standard carbon steel fittings are not suitable. The dual-grade 304/304L designation means it meets both standard and low-carbon specifications, making it compatible with welded assemblies where sensitization is a concern. Plumbers, pipefitters, and industrial maintenance technicians regularly install these nipples as connecting pieces between threaded fittings, valves, and pipe runs.

This nipple is suited for residential and commercial piping applications including water supply lines, compressed air systems, chemical distribution, and other systems requiring corrosion-resistant fittings. Its 1/4 inch pipe size fits standard NPT threaded connections and is commonly used in tight-space installations where a short threaded connector is required between two fittings or a valve and a line. The Schedule 40 wall rating supports typical working pressures found in plumbing and light industrial service.

Key Features

• Grade 304/304L dual-certified stainless steel construction for corrosion resistance
• Welded construction to Schedule 40 wall thickness
• 1/4 inch pipe size with standard NPT threading
• Suitable for corrosive, wet, and high-moisture service environments
• Low-carbon 304L grade supports post-weld applications without sensitization risk

Compatibility

Designed as an OEM-style replacement or standard fitting for 1/4 inch NPT threaded piping systems in plumbing, HVAC, and light industrial applications.

Installation Notes

Installation is performed by licensed plumbers or pipefitters using appropriate pipe wrenches and thread sealant or PTFE tape rated for the service fluid. Shut off and depressurize the system completely before removing or installing any threaded fittings. Avoid over-tightening stainless steel threads, as galling can occur — use an anti-gall thread compound where required. Local plumbing codes and applicable sections of the IPC should be followed for approved materials and installation methods.