Midland Industries 28511 Auto Interchange Male Plug 3/8 Npt

Product Description

The MIDLAND INDUSTRIES 28511 is a steel automotive interchange male plug designed for pneumatic quick-connect systems. It features a 1/4-inch body size with a male automotive interchange profile on one end and a 3/8-inch male NPT thread on the other, allowing it to connect air lines and pneumatic tools to standard threaded ports. Rated to a maximum operating pressure of 300 psi, this plug is built for reliable performance in shop and field pneumatic applications. Its steel construction provides durability under repeated connect-disconnect cycles in demanding environments.

This plug is suited for residential and commercial pneumatic installations where automotive interchange-style quick-connect fittings are the standard. It is commonly used in service shops, maintenance facilities, and industrial settings to mate air hoses, compressors, and pneumatic tools to threaded outlet ports. The 3/8-inch male NPT thread makes it compatible with a wide range of standard air line components and threaded manifolds.

Key Features

• 1/4-inch body size with male automotive interchange quick-connect profile
• 3/8-inch male NPT thread for connection to standard threaded pneumatic ports
• Maximum operating pressure of 300 psi for demanding shop and field use
• Steel construction for durability under repeated coupling cycles
• Compatible with Tru-Flate connectors

Compatibility

Compatible with Tru-Flate connectors. Designed as an OEM-style replacement or upgrade fitting for automotive interchange pneumatic quick-connect systems.

Installation Notes

Installation is typically performed by a qualified pneumatic technician or plumber familiar with compressed air systems. Depressurize and bleed the air line completely before installing or removing any pneumatic fitting. Apply appropriate thread sealant to the NPT threads per standard practice, and hand-tighten before finishing with a wrench. Follow all applicable codes and equipment manufacturer guidelines for maximum system pressure ratings.