Powermate 512-0039 Pipe Plug 1.5 Inch Npsm

Product Description

The POWERMATE 512-0039 is a pipe plug sized to a 1.5-inch NPSM (National Pipe Straight Mechanical) thread. Pipe plugs of this type are used to seal open pipe ends, ports, or fittings in compressed-air systems and related fluid-handling assemblies. This plug threads directly into a female NPSM port and creates a mechanical seal without the need for a tapered thread interface. It is a standard replacement and service part for POWERMATE compressor systems and accessories.

This plug is suited for use in compressed-air plumbing applications where a straight mechanical thread connection is required. Common install scenarios include capping unused ports on manifolds, tanks, or fittings during service or system reconfiguration. It is used by HVAC technicians, plumbers, and general mechanical trades working on air-supply systems, pneumatic tool networks, and similar compressed-air equipment.

Key Features

• 1.5-inch NPSM straight mechanical thread for direct port sealing without taper
• OEM POWERMATE part number 512-0039 ensures correct fitment in compatible systems
• Designed to cap or seal open pipe ports in compressed-air and fluid-handling assemblies
• Straight thread design allows removal and reinstallation without thread galling common to tapered plugs

Compatibility

Designed as an OEM-style replacement pipe plug for POWERMATE compressed-air systems and accessories requiring a 1.5-inch NPSM threaded port closure.

Installation Notes

Installation should be performed by a qualified technician. Depressurize the system completely and verify zero pressure before removing or installing any pipe plug. Apply appropriate thread sealant compatible with the system fluid and verify the port is a straight NPSM thread before installation. Do not overtighten, as straight mechanical threads rely on a gasket or sealant rather than thread interference for sealing.

Technical Specifications

• Thread Size: 1.5 inches NPSM
• Thread Type: National Pipe Straight Mechanical (NPSM)
• Part Type: Pipe Plug

Standard Information

• Brand: POWERMATE
• Manufacturer Part Number: 512-0039