Parker 68HD-5-2 Brass Compression Connector 1/8 in

Product Description

The PARKER 68HD-5-2 is a brass compression tube connector designed to join tubing to a male NPT threaded port in fluid and pneumatic distribution systems. It features a compression-style tube end and a 1/8 inch MNPT threaded end, allowing a secure, leak-resistant mechanical connection without soldering or flaring. Rated to 1800 psi maximum working pressure, this fitting handles demanding service conditions in hydraulic, pneumatic, and instrumentation lines. The brass construction offers corrosion resistance and reliable sealing across a wide temperature range. Licensed plumbers, HVAC technicians, and instrumentation mechanics install this fitting in both new construction and service applications.

The PARKER 68HD-5-2 is suited for residential and commercial installations where tubing must terminate at a threaded port. Typical applications include compressed air lines, refrigeration instrumentation tubing, hydraulic control circuits, and fluid transfer systems requiring a removable, repositionable connection. The compression end grips tubing mechanically, making it appropriate for installations where open flame is not permitted or practical. It is sold and packaged as a single unit.

Key Features

• Brass construction provides corrosion resistance in air, water, and light hydraulic fluid service
• 1800 psi maximum working pressure rating for demanding pneumatic and hydraulic lines
• Compression x MNPT end connections allow tubing to mate directly to a male NPT threaded port
• 1/8 inch thread size fits widely used NPT port dimensions in valves, manifolds, and instruments
• Wide operating temperature range of -65 degrees F to 250 degrees F supports varied service environments
• No soldering or flaring required — compression sleeve grips tubing mechanically

Compatibility

Designed as an OEM-style replacement or new-install compression fitting for systems using 1/8 inch MNPT threaded ports with compression tube connections in pneumatic, hydraulic, and instrumentation applications.

Installation Notes

Installation should be performed by a qualified plumber, HVAC technician, or instrumentation mechanic familiar with compression fittings and NPT thread standards. Shut off and depressurize the system completely before disassembling or installing any fitting. Apply an appropriate thread sealant to the MNPT threads per the system fluid and applicable code requirements, and hand-tighten before using a wrench to seat the connection. Do not overtighten the compression nut, as excessive force can distort the compression sleeve and compromise the seal.