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The MIDLAND INDUSTRIES 66012 is a universal coupling female end fitting designed for use in hose and ground joint assembly applications. It features a 1-inch Female NPT connection and is constructed from ductile iron for durability in demanding service environments. Rated to a maximum operating pressure of 150 psi, this fitting is suited for plumbing, industrial fluid transfer, and mechanical service work where a reliable female-end ground joint connection is required. Plumbers, pipefitters, and industrial maintenance technicians are the primary installers of this type of component.
This fitting is used in universal and ground joint hose assemblies across residential, commercial, and light industrial applications. The 1-inch Female NPT thread makes it compatible with standard NPT-threaded pipe and hose shank assemblies. It is commonly installed at connection points where a ground joint swivel or hose coupling system requires a threaded female end to complete the assembly.
Designed as an OEM-style universal female end for ground joint and hose coupling systems using 1-inch Female NPT connections in ductile iron configurations.
Installation is typically performed by licensed plumbers or pipefitters working on threaded pipe assemblies. Shut off fluid flow and depressurize the line before installing or removing any coupling component. Apply appropriate thread sealant or tape to NPT threads per standard practice and applicable plumbing codes. Do not over-tighten threaded connections, as ductile iron fittings can crack under excessive torque.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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