PARKER Compression Fitting Adapter: 1/4 in OD x 3/8 in Pipe Size, Compression x MNPT
The PARKER Compression Fitting Adapter (MPN 4-6 FBZ-B) is a single-ferrule brass compression fitting, type Compression x MNPT, in the CPI™ series. It connects 1/4 in OD tubing to 3/8 in pipe size. 3G Electric…
SKU 3G-OTH-598441
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Product Description
The PARKER Compression Fitting Adapter (MPN 4-6 FBZ-B) is a single-ferrule brass compression fitting, type Compression x MNPT, in the CPI™ series. It connects 1/4 in OD tubing to 3/8 in pipe size. 3G Electric interprets your demand for this genuine PARKER component and delivers it with specialist sourcing support across 14 industrial departments.
Frequently Asked Questions
What is the PARKER 4-6 FBZ-B compression fitting adapter used for?
The PARKER 4-6 FBZ-B adapter connects 1/4 in OD tubing to 3/8 in pipe size in pneumatic or hydraulic systems. It is a single-ferrule brass compression fitting from the CPI™ series, ideal for instrumentation and process control applications where leak-free sealing is required.
What are the specifications of the PARKER 4-6 FBZ-B?
The PARKER 4-6 FBZ-B is a Compression x MNPT adapter in brass, part of the CPI™ series. It has a 1/4 in OD tube size and 3/8 in pipe size. The manufacturer part number is 4-6 FBZ-B. It is a single-ferrule compression fitting designed for reliable sealing.
Where to buy the PARKER 4-6 FBZ-B worldwide?
3G Electric supplies the genuine PARKER 4-6 FBZ-B compression fitting adapter worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source this CPI™ series component and support your procurement across 14 departments.
How to install a PARKER single-ferrule compression fitting?
To install the PARKER CPI™ single-ferrule fitting, slide the nut and ferrule onto the tubing, insert the tube fully into the fitting body, then tighten the nut by hand. Use a wrench to tighten an additional 1-1/4 turns for proper bite. Always follow PARKER’s published torque specifications for brass fittings.
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Common applications for PARKERPARKER Products
3G Electric supplies PARKER single-ferrule brass compression fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









