Alemite 339590 Grease Fitting Adapter 1/2 Inch Pt Female

Product Description

The ALEMITE 339590 is a grease fitting adapter designed to extend or convert grease fittings in lubrication systems. This adapter accepts a 1/2 inch PT female connection and functions as a refill grease nipple, allowing technicians to service hard-to-reach or non-standard grease points without modifying the equipment. It is a compact, single-piece component used in preventive maintenance routines on mechanical equipment. Lube technicians, fleet service professionals, and industrial maintenance crews install this type of adapter when a standard grease gun coupler will not mate directly to an existing fitting.

This adapter is suited for use in both light industrial and heavy equipment lubrication applications. It threads into equipment using PTF thread standard, which is a dryseal pipe thread form commonly found on North American industrial and mobile equipment. Typical install scenarios include bearing housings, chassis lubrication points, and gearbox fill ports where a conversion or extension of the existing grease point is required.

Key Features

• 1/2 inch PT female thread connection for compatibility with PTF-threaded grease points
• Refill nipple design allows grease gun access at converted or extended lube points
• Compact, single-unit construction with minimal installed footprint
• PTF dryseal thread standard provides a pressure-tight connection without sealant tape

Compatibility

Designed as an OEM-style grease fitting adapter for equipment with 1/2 inch PTF female grease ports in industrial, fleet, and mechanical maintenance applications.

Installation Notes

Installation is performed by lubrication or mechanical maintenance technicians using standard hand tools. Before installing, relieve any residual grease pressure at the fitting location and wipe the port clean. Thread the adapter in by hand first to confirm thread engagement before tightening with a wrench. Do not overtighten, as PTF fittings rely on thread interference for sealing and excessive torque can damage the port.