Merit Brass 4006-1800 Ss Pipe Nipple 3/8 in Sch 40 Gr 304

Product Description

The MERIT BRASS 4006-1800 is a Schedule 40 stainless steel pipe nipple sized for 3/8 inch pipe, constructed from Grade 304 and 304L stainless steel using a welded seam process. Pipe nipples serve as short threaded connectors used to join sections of pipe, fittings, or valves in plumbing, HVAC, and process piping systems. The dual-grade 304/304L designation means the base material meets both standard and low-carbon specifications, offering solid corrosion resistance across a wide range of service environments. Plumbers, pipefitters, and HVAC technicians install these as standard inline connectors wherever a threaded stainless nipple is required.

This nipple is suited for residential and light commercial installations involving water supply, compressed air, steam, and compatible fluid systems. Schedule 40 wall thickness makes it appropriate for moderate-pressure service typical of trade plumbing and HVAC applications. Grade 304/304L construction provides reliable performance in corrosive or wet environments where carbon steel fittings would be unsuitable.

Key Features

• Grade 304/304L dual-certified stainless steel for broad corrosion resistance
• Welded seam construction meeting Schedule 40 wall thickness requirements
• 3/8 inch pipe size for standard small-diameter threaded connections
• Low-carbon 304L designation minimizes sensitization risk in welded service
• UNSPSC Code 40173300 for procurement and catalog system compatibility

Compatibility

Designed as an OEM-style replacement or direct-install fitting for 3/8 inch threaded pipe systems using Schedule 40 stainless steel components.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable IPC or IFGC requirements. Apply thread sealant or PTFE tape rated for stainless steel fittings before making up the joint. Shut off and depressurize the system fully before removing or installing any threaded nipple. Avoid over-torquing stainless fittings, as galling of threads can occur if connections are forced without proper lubrication.