PARKER Compression Fitting Plug: 1/4 in OD Fitting Size, NPTF, Brass
The PARKER Compression Fitting Plug (MPN 639CA-4) is a self-aligning brass compression fitting with a 1/4 in OD fitting size and NPTF threads, supplied in a 25-pack. This plug is designed for sealing unused ports in…
SKU 3G-OTH-470595
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Product Description
The PARKER Compression Fitting Plug (MPN 639CA-4) is a self-aligning brass compression fitting with a 1/4 in OD fitting size and NPTF threads, supplied in a 25-pack. This plug is designed for sealing unused ports in PARKER compression fitting systems.
Frequently Asked Questions
What is a PARKER compression fitting plug used for?
A PARKER compression fitting plug seals unused ports in brass compression fitting systems, preventing leaks and maintaining system pressure. It is commonly used in pneumatic, hydraulic, and instrumentation applications where a reliable, leak-free seal is required.
What are the specifications of the PARKER 639CA-4 compression fitting plug?
The PARKER 639CA-4 is a self-aligning brass compression fitting plug with a 1/4 in OD fitting size and NPTF threads. It is supplied in a 25-pack. This plug is designed to seal unused ports in PARKER compression fitting systems.
Where to buy PARKER compression fitting plugs worldwide?
3G Electric supplies PARKER compression fitting plugs worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine PARKER components to your facility. Contact us for pricing and lead time on the 639CA-4.
How to install a PARKER compression fitting plug?
To install a PARKER compression fitting plug, ensure the port threads are clean and apply a suitable thread sealant compatible with brass and NPTF threads. Hand-tighten the plug, then use a wrench for an additional 1/4 to 1/2 turn. Do not overtighten to avoid damaging the fitting.
Used in
Common applications for PARKERPARKER Products
3G Electric supplies PARKER self-aligning brass compression fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









