Parker PN251-70 Male Pipe Thread Extended Nipple 1/8 in

Product Description

The PARKER PN251-70 is a male pipe thread extended nipple fitting designed for hydraulic hose assemblies and fluid transfer systems. Machined from brass, this non-valved fitting uses an NPTF thread form to create a pressure-tight mechanical seal without the need for sealant tape in many applications. It carries a 200 psi pressure rating and handles a temperature range of -20 degrees F to 400 degrees F. The 1/8 inch thread size and 1/4 inch body diameter make this a compact fitting suited to low-flow hydraulic and pneumatic line connections. It belongs to the Moldmate series and is installed by hydraulic technicians, pipefitters, and maintenance mechanics.

This fitting is used in hydraulic hose assemblies, pneumatic lines, and fluid transfer plumbing where a male pipe thread end connection is required. The extended nipple configuration provides additional thread engagement length, which is useful in installations with deeper port entries or where a standard nipple would leave insufficient thread engagement. Typical applications include industrial machinery, mobile hydraulic equipment, and process piping where brass construction is compatible with the fluid media and operating pressures do not exceed 200 psi.

Key Features

• NPTF thread form provides a pressure-tight seal through thread interference
• Brass construction offers corrosion resistance in compatible fluid systems
• 200 psi pressure rating suitable for low-pressure hydraulic and pneumatic circuits
• Extended nipple design allows deeper port engagement than standard nipple fittings
• Wide temperature range: -20 degrees F to 400 degrees F
• Non-valved design with no internal flow restriction

Compatibility

Designed as an OEM-style replacement or service fitting for hydraulic hose assemblies requiring a 1/8 inch male NPTF pipe thread extended nipple connection with a 1/4 inch body diameter.

Installation Notes

Installation should be performed by a qualified hydraulic technician or pipefitter. Depressurize and isolate the hydraulic or pneumatic circuit fully before removing or installing any fittings. NPTF threads rely on thread-form interference for sealing, but inspect threads for damage before assembly and verify that the port material and fitting material are compatible to avoid galvanic corrosion. Follow applicable industry standards for torque and thread engagement in hydraulic plumbing systems.