273800 - Miller 1/2 Inch NPT Close Nipple Fitting

Miller 273800 Close Nipple Fitting Overview

The Miller 273800 is a specialized close nipple fitting designed for industrial piping and welding equipment applications. Manufactured to Miller Electric's precise OEM specifications, this component serves as a critical connector in fluid and gas delivery systems within welding power sources. The fitting features a "close" design, meaning the threads from both ends meet in the middle, leaving virtually no unthreaded pipe exposed. This configuration is essential for applications requiring tight clearances where space is at a premium.

Technically, the unit is defined by its 1/2-inch National Pipe Taper (NPT) male threads on both ends. The NPT standard ensures a tight seal when used with compatible female fittings, relying on the taper to compress and seal the connection effectively. The total length of the fitting is 1.13 inches, a specific dimension often required to bridge internal components in Miller machinery without altering the intended geometry of the plumbing assembly. As an OEM part, it guarantees material compatibility and pressure ratings suitable for the specific Miller equipment it is intended to service.

Proper maintenance of welding equipment often involves replacing worn or damaged fittings in coolant or shielding gas lines. Using the correct replacement part, such as the Miller 273800, prevents leaks that could lead to system inefficiencies or equipment damage. This fitting is supplied as a single unit and is ready for immediate installation using standard pipe fitting tools and appropriate thread sealant.