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The PARKER 14-787 is a male NPTF threaded pneumatic hose coupler designed for compressed air tool and line connections using the Tru-Flate Automotive interchange standard. Built from steel, this coupler accepts a 3/8-18 male NPTF thread and features a 3/8 inch body diameter. It is rated for a maximum working pressure of 300 psi and handles temperatures from -40 degrees F to 250 degrees F, making it suitable for demanding shop and field environments. Licensed HVAC techs, plumbers, machinists, and general trade professionals install this fitting when connecting pneumatic hoses, tools, and air supply lines on standard shop compressor setups.
This coupler is applied in residential and commercial shop environments where Tru-Flate Automotive interchange fittings are the specified coupling system. Common installation scenarios include connecting air impact wrenches, blow guns, pneumatic nailers, and other compressed air tools to a shop compressor line. The threaded male NPTF connection provides a pressure-rated, leak-resistant fit to compatible female coupler bodies. The 3/8 inch body size is among the most common in general-purpose pneumatic systems across automotive, HVAC, and plumbing trade shops.
Designed as a Tru-Flate Automotive interchange replacement coupler for pneumatic hose and tool connection systems using 3/8-18 male NPTF threaded fittings.
Installation should be performed by a qualified trade professional familiar with compressed air systems. Depressurize and bleed the air supply line completely before removing or installing any pneumatic coupling. Apply thread sealant appropriate for pneumatic service to the male NPTF threads before assembly. Inspect mating female coupler bodies for wear or damage prior to connection to ensure a reliable, leak-free joint.
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