Parker 318P-6N Nylon Pipe Plug 3/8 Inch Mpt

Product Description

The PARKER 318P-6N is a nylon plastic pipe plug designed to seal threaded pipe openings using a standard male pipe thread (MPT) end connection. Made from white nylon, this plug provides a lightweight, corrosion-resistant closure for 3/8 inch pipe ports in fluid handling systems. It meets FDA and NSF-51 standards, making it appropriate for applications where contact with potable water or food-grade fluids is a requirement. Licensed plumbers and pipe fitters install this type of plug during system testing, maintenance, or when capping unused ports on manifolds, valves, and distribution assemblies.

This plug is suited for residential and light commercial plumbing systems, irrigation assemblies, and fluid processing equipment where a non-metallic, corrosion-resistant plug is needed. The nylon construction resists common chemicals and eliminates galvanic corrosion concerns in mixed-material piping systems. Its white color aids visual identification during inspection. NSF-51 compliance makes it a fit for food equipment and potable water system applications where material certification is required by code or specification.

Key Features

• 3/8 inch fitting size with MPT (male pipe thread) end connection for straightforward installation into female-threaded ports
• Nylon construction provides corrosion resistance and chemical compatibility suitable for water and food-grade fluid systems
• FDA and NSF-51 certified for use in potable water and food equipment applications
• White color for easy visual identification in multi-port assemblies
• Lightweight at 0.0035 pounds, reducing load concerns on plastic manifolds and thin-wall fittings

Compatibility

Designed as an OEM-style replacement or standard-service fitting for 3/8 inch female pipe thread (FPT) ports in residential and commercial plumbing, irrigation, and fluid processing systems requiring NSF-51 or FDA-compliant materials.

Installation Notes

Installation is performed by a licensed plumber or qualified pipe fitter. Shut off system pressure and depressurize the line before installing or removing any pipe plug. Apply thread sealant tape or compound rated for nylon fittings as required by local plumbing code. Do not overtighten nylon fittings; hand-tight plus a partial wrench turn is typically sufficient to achieve a leak-free seal without cracking the fitting body.