PARKER Compression Fitting Adapter: 1/4 in OD x 1/4 in Pipe Size
The PARKER Compression Fitting Adapter (MPN 4-4 FBU-S) is a flareless bite-type steel compression fitting from the Ferulok series, designed for 1/4 in OD tube to 1/4 in pipe size connections with a 1/4-18 thread…
SKU 3G-OTH-469791
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Product Description
The PARKER Compression Fitting Adapter (MPN 4-4 FBU-S) is a flareless bite-type steel compression fitting from the Ferulok series, designed for 1/4 in OD tube to 1/4 in pipe size connections with a 1/4-18 thread size. 3G Electric interprets your demand for this OEM-specified adapter, sourcing it across 14 industrial departments—with specialist depth in combustion, pumps, and controls—to deliver the right answer, not just a catalog.
Frequently Asked Questions
What is a PARKER Ferulok compression fitting adapter used for?
The PARKER Ferulok compression fitting adapter (MPN 4-4 FBU-S) connects 1/4 in OD tube to 1/4 in pipe size in hydraulic and pneumatic systems. Its flareless bite-type design provides a leak-proof metal-to-metal seal, ideal for high-pressure industrial applications across machining, power transmission, and instrumentation.
What are the specifications of the PARKER 4-4 FBU-S adapter?
This PARKER Ferulok adapter has a 1/4 in OD tube size, 1/4 in pipe size, and 1/4-18 thread size. It is a flareless bite-type steel compression fitting, series Ferulok, with manufacturer part number 4-4 FBU-S. 3G Electric sources this OEM-specified part across 14 industrial departments.
Where to buy PARKER Ferulok compression fittings worldwide?
3G Electric supplies PARKER Ferulok compression fittings like the 4-4 FBU-S adapter to customers worldwide. We handle full logistics and customs clearance, interpreting your demand and sourcing the correct OEM part across our 14 industrial departments. Contact us for availability and delivery to your location.
How to install a PARKER flareless bite-type compression fitting?
To install a PARKER Ferulok flareless fitting, insert the tube fully into the fitting, then tighten the nut until the ferrule bites into the tube. Follow the manufacturer's recommended torque for the 1/4-18 thread size. 3G Electric can provide generic installation guidance; consult the OEM manual for exact procedures.
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Common applications for PARKERPARKER Products
3G Electric supplies PARKER flareless bite-type steel compression fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









