Parker 68HD-6-4 3/8in OD x 1/4in MPT Brass Compression Male Connector 10PK

This listing is for a factory-new box of 10 Parker Hannifin 68HD-6-4 brass compression-to-male pipe connectors from the CPI (Compression Pipe Inc.) Instrumentation Division, as confirmed by the box label visible in the photos. The fitting connects 3/8 in OD tubing (compression end with sleeve and nut) to a 1/4 in NPT male pipe thread, with the 'HD' designation indicating the heavy-duty series designed for higher-pressure instrumentation and fluid power service compared to the standard 68 series. Brass construction provides corrosion resistance suitable for air, water, oil, and many chemical service applications; the two-ferrule compression design creates a reliable, leak-free seal on copper, brass, or suitable plastic tubing without flaring. These connectors are widely used in pneumatic instrumentation lines, process control tubing, and compressed air distribution systems where a transition from tube to threaded pipe is required.

Product Specifications