PARKER Compression Fitting Adapter: 1/4 in OD x 3/8 in Pipe Fitting Size, Compression x MNPT
The PARKER Compression Fitting Adapter (MPN 68C-4-6) is a standard sleeve brass compression fitting, type Compression x MNPT, supplied in a 10-pack. It accommodates a 1/4 in OD tube and a 3/8 in pipe fitting size.
SKU 3G-OTH-482216
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Product Description
The PARKER Compression Fitting Adapter (MPN 68C-4-6) is a standard sleeve brass compression fitting, type Compression x MNPT, supplied in a 10-pack. It accommodates a 1/4 in OD tube and a 3/8 in pipe fitting size.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is a PARKER Compression Fitting Adapter used for?
A PARKER Compression Fitting Adapter connects 1/4 in OD tubing to a 3/8 in male NPT threaded port. It is used in pneumatic, hydraulic, and instrumentation systems to create a leak-tight seal without soldering or welding, common in industrial fluid power and process control applications.
What are the specifications of the PARKER 68C-4-6 compression fitting?
The PARKER 68C-4-6 is a standard sleeve brass compression fitting, type Compression x MNPT, supplied in a 10-pack. It fits 1/4 in OD tube and 3/8 in pipe fitting size. The brass construction provides corrosion resistance for moderate-pressure fluid and gas lines.
Where to buy PARKER compression fittings in worldwide?
3G Electric supplies PARKER compression fittings like the 68C-4-6 to worldwide locations. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery for procurement teams needing genuine PARKER brass compression adapters for their fluid systems.
How to install a PARKER compression x MNPT adapter?
To install a PARKER compression x MNPT adapter, slide the nut and sleeve onto the tube, insert the tube fully into the fitting body, then tighten the nut by hand followed by a wrench turn. Use thread sealant on the male NPT end. Avoid overtightening to prevent tube deformation.
Used in
Common applications for PARKERPARKER Products
3G Electric supplies PARKER standard sleeve brass compression fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









