Parker PX-00021 Male Rigid Hydraulic Hose Fitting Brass

Product Description

The PARKER PX-00021 is a male rigid straight fitting designed for hydraulic hose assemblies. It accepts hose with a 5/16 inch (0.3125 inches) inside diameter and connects to porting or mating fittings via a 3/8-18 Male NPTF threaded end. Constructed from brass, this fitting provides corrosion resistance in fluid power and hydraulic systems. The straight configuration simplifies inline connections where no angular offset is needed. At 1.65 inches in overall length and weighing just 0.01 pounds, it is a compact, low-profile component suited for tight plumbing runs. Installation is performed by qualified hydraulic technicians and fluid power mechanics.

This fitting is used in hydraulic hose fabrication and repair applications across industrial, mobile, and light commercial fluid power systems. The Male NPTF thread conforms to the dryseal tapered thread standard, creating a pressure-tight mechanical seal without the need for additional sealant in most applications. It is packaged in a quantity of 5 per pack, making it practical for shop stock and service van inventory. Typical applications include connecting hydraulic hose to pumps, cylinders, valves, and manifold ports where a straight male end termination is required.

Key Features

• 5/16 inch (0.3125 inches) hose inside diameter for proper hose end fitment
• 3/8-18 Male NPTF dryseal tapered thread for pressure-tight connections
• Straight shape for direct inline plumbing without angular offset
• Brass construction offers corrosion resistance in hydraulic fluid environments
• 1.65 inch overall length suits compact and space-restricted installations
• Packaged 5 units per pack for convenient shop and field stocking

Compatibility

Designed as an OEM-style hydraulic hose end fitting for 5/16 inch ID hydraulic hose assemblies requiring a 3/8-18 Male NPTF straight termination. Part of the Parker 91N Series.

Installation Notes

Installation should be performed by a qualified hydraulic technician or fluid power mechanic. Depressurize and bleed down the hydraulic system completely before removing or installing any hose fitting. Inspect hose and fitting seating surfaces for damage prior to assembly. Torque to the fitting and hose manufacturer specifications and verify for leaks before returning the system to service.