Parker 616A28-SS Hex Plug 1/2 Inch Mnptf Stainless Steel

Product Description

The PARKER 616A28-SS is a stainless steel hex plug designed to seal off 1/2 inch male MNPTF threaded pipe ends in industrial piping systems. Rated to 300 psi, this plug is suited for use in fluid, pneumatic, and general-purpose pipe assemblies where a reliable threaded closure is required. The overall length is 1 inch. Its stainless steel construction provides corrosion resistance in demanding environments. Plumbers, pipefitters, and industrial maintenance technicians install this type of fitting where a pipe branch or port needs to be permanently or temporarily closed off.

This hex plug is used in residential, commercial, and industrial piping applications wherever a 1/2 inch MNPTF threaded port requires sealing. Common install scenarios include capping unused tee or cross outlets, sealing test ports, and closing off pipe ends during system modifications or maintenance. The hex drive design allows tightening with a standard wrench, making it straightforward to install in tight spaces common in mechanical rooms and equipment enclosures.

Key Features

• Stainless steel construction for corrosion resistance in wet and chemical-exposure environments
• 300 psi pressure rating suitable for general industrial and plumbing service
• 1/2 inch MNPTF male thread for standard tapered pipe thread connections
• 1 inch overall length for compact fitment in confined spaces
• Hex drive head for installation and removal with a standard open-end or socket wrench

Compatibility

Designed as an OEM-style replacement or service fitting for any piping system using standard 1/2 inch MNPTF tapered pipe thread ports.

Installation Notes

Installation is performed by licensed plumbers or qualified pipefitters following applicable IPC and IFGC guidelines for threaded pipe connections. Depressurize and isolate the relevant pipe section before installing or removing any threaded plug. Apply an appropriate thread sealant or PTFE tape to the male threads before threading in, and tighten with a wrench to a firm, leak-free fit. Do not over-torque stainless steel fittings into dissimilar metal bodies, as galling can occur.