Parker UC-251-6MP Pneumatic Hose Coupler 1/4 in Male Npt

Product Description

The PARKER UC-251-6MP is a universal pneumatic hose coupler designed for use in compressed air and pneumatic fluid power systems. With a 1/4 inch body diameter and a 3/8-18 male NPT threaded connection, this coupler provides a reliable, leak-resistant interface between air hose assemblies and pneumatic tools or equipment. Constructed from brass, it offers solid corrosion resistance in typical shop and field environments. Licensed HVAC technicians, plumbers, and industrial mechanics commonly install this type of coupler when building or servicing pneumatic supply lines.

This coupler fits residential, commercial, and light industrial pneumatic applications where a standard 1/4 inch universal-style coupler body is required. The 3/8-18 NPT male thread engages directly with female NPT ports on compressors, manifolds, regulators, and pneumatic control equipment. The universal coupler profile is broadly compatible with standard industrial-style quick-disconnect sockets, making it a practical choice for job sites where multiple tool types are in use.

Key Features

• 1/4 inch coupler body diameter for standard pneumatic hose systems
• 3/8-18 male NPT thread for direct connection to female NPT ports
• Brass construction provides corrosion resistance in compressed air service
• Universal coupler design compatible with industrial-style quick-disconnect sockets
• Threaded connection type for secure, tool-tight installation

Compatibility

Designed as an OEM-style replacement or service coupler for pneumatic systems requiring a 1/4 inch body universal coupler with a 3/8-18 male NPT threaded inlet.

Installation Notes

Installation is typically performed by a licensed pipefitter, HVAC technician, or qualified mechanic. Depressurize the pneumatic system completely before disconnecting or replacing any coupler. Apply thread sealant tape or compound to the NPT threads per manufacturer guidelines and applicable plumbing or mechanical codes. Do not over-tighten threaded brass fittings, as brass is subject to thread damage from excessive torque.