PARKER Compression Fitting Adapter: 3/8 in OD x 1/4 in Pipe Fitting Size, Compression x MNPT
The PARKER Compression Fitting Adapter (MPN VS68AB-6-4) is a DOT Air Brake Compression Fitting for Copper Lines, type Compression x MNPT, Brass, with a 3/8 in OD x 1/4 in Pipe Fitting Size. 3G Electric interprets…
SKU 3G-OTH-468096
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Product Description
The PARKER Compression Fitting Adapter (MPN VS68AB-6-4) is a DOT Air Brake Compression Fitting for Copper Lines, type Compression x MNPT, Brass, with a 3/8 in OD x 1/4 in Pipe Fitting Size. 3G Electric interprets your demand for this genuine PARKER component and delivers it across 14 industrial departments — with specialist depth in combustion, pumps and controls as a trust anchor, not a limit.
Frequently Asked Questions
What is the PARKER VS68AB-6-4 compression fitting adapter used for?
The PARKER VS68AB-6-4 is a DOT Air Brake Compression Fitting for copper lines, used to connect 3/8 in OD tubing to a 1/4 in male NPT port. It is commonly applied in heavy-duty truck and trailer air brake systems, pneumatic controls, and industrial fluid power circuits requiring a leak-proof brass connection.
What are the specifications of the PARKER VS68AB-6-4?
The PARKER VS68AB-6-4 is a brass compression fitting adapter with a 3/8 in OD tube size and 1/4 in pipe fitting size. It features a Compression x MNPT connection type and meets DOT standards for air brake systems. The manufacturer part number is VS68AB-6-4.
Where to buy the PARKER VS68AB-6-4 worldwide?
3G Electric supplies the genuine PARKER VS68AB-6-4 compression fitting adapter to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time — we source across 14 industrial departments with specialist expertise in combustion, pumps, and controls.
How to install the PARKER VS68AB-6-4 compression fitting?
To install the PARKER VS68AB-6-4, cut the copper tube squarely, deburr the end, and slide the nut and ferrule onto the tube. Insert the tube fully into the fitting body, then tighten the nut by hand followed by a wrench turn per manufacturer torque specs. Do not overtighten to avoid damaging the brass threads.
Used in
Common applications for PARKERPARKER Products
3G Electric supplies PARKER dot air brake compression fittings for copper lines. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









