PARKER Compression Fitting Adapter: 1/4 in Pipe Fitting Size, Compression x MNPT
The PARKER Compression Fitting Adapter (MPN 398P-6-4) is a creep-resistant self-aligning brass compression fitting with a 1/4 in pipe fitting size, configured as Compression x MNPT. This component is part of 3G…
SKU 3G-OTH-596325
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Product Description
The PARKER Compression Fitting Adapter (MPN 398P-6-4) is a creep-resistant self-aligning brass compression fitting with a 1/4 in pipe fitting size, configured as Compression x MNPT. This component is part of 3G Electric's curated industrial offering across 14 departments, supported by specialist depth in fluid-control applications.
Frequently Asked Questions
What is a PARKER compression fitting adapter used for?
A PARKER compression fitting adapter connects tubing to threaded ports in fluid systems. This 1/4 in Compression x MNPT brass adapter creates leak-tight seals in pneumatic, hydraulic, and instrumentation lines across industrial plants, refineries, and process equipment.
What are the specifications of the PARKER 398P-6-4 compression fitting?
The PARKER 398P-6-4 is a creep-resistant self-aligning brass compression fitting adapter. It has a 1/4 in pipe fitting size with a Compression x MNPT configuration. The manufacturer part number is 398P-6-4, and it is made of brass for corrosion resistance.
Where to buy PARKER compression fittings in worldwide?
3G Electric supplies PARKER compression fittings like the 398P-6-4 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source and deliver genuine components for fluid-control applications.
How to install a PARKER compression fitting adapter?
To install a PARKER compression fitting adapter, slide the nut and ferrule onto the tubing, insert the tube fully into the fitting body, then tighten the nut by hand followed by a wrench turn. Avoid over-tightening to prevent damage. Always verify tube support and alignment before pressurizing.
Used in
Common applications for PARKERPARKER Products
3G Electric supplies PARKER creep-resistant self-aligning brass compression fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









