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Tube Fittings Division

Engineered to be leak-free and durable

Parker has engineered its Seal-Lok O-ring Face Seal fittings to be the most reliable leak-free and corrosion resistant connection in the industry.

Learn more about Seal-Lok ORFS Fittings difference

Tube Fittings Division

Parker Tube Fittings Division manufactures leak-free hydraulic connections, superior corrosion-free tube fittings, hose adapters and tube fabrication equipment for reliable leak-free connection solutions for most high pressure and high temperature hydraulic applications. From O-Ring Face Seal (ORFS) fittings, 37° flare JIC tube fittings, flat face seal fittings, conversion adapters for tube and hose connections, to hydraulic benders and Parflange® flaring and flanging system, Parker delivers unfailing solutions to a wide range of industries and applications.

Parker FittingFinder

Parker Fitting Finder App


Easily identify the part numbers of the tube fittings and adapters that you need anytime and anywhere with our FittingFinder app. Dimensional information, CAD models, and a distributor locator are also included for your convenience, along with a competitive interchange tool. Parker FittingFinder is available in mobile, tablet and web versions.

Video: State-of-the-Art Metallurgical Lab

Parker Metallurgical Lab for Tube Fittings

By investing in technologies that allow us to test products in conditions which mimic our customers’ applications, Parker continues to develop new products that convey fluid without leaks, while providing long-lasting component life without corrosion, even under the harshest conditions. Find out more about the Parker difference in leak-free tube fittings, adapters and components.

Looking for the most reliable leak-free ORFS fittings?

Parker Seal-Lok O-Ring Face Seal ORFS FittingsParker Seal-Lok fittings offer the most reliable leak-free ORFS fitting connections in the industry thanks to our patented enhancements. O-ring fall out and pinch are eliminated with Trap-Seal, the trapezoidal shaped seal that improves retention and provides maximum assurance for leak-free connections. Steel Seal-Lok ORFS fittings come standard with our industry-leading ToughShield plating that protects against corrosion more than 10 times longer than SAE requirements.


Learn more about the Parker Seal-Lok difference, read the blog post "Not All O-ring Face Seal Fittings Are Created Equal."

ToughShield Plating

Parker ToughShield (TS1000) plating

Parker's standard stainless steel fittings and adapters with ToughShield (TS1000) plating deliver unmatched corrosion protection for your fitting connections at no additional cost. TS1000 not only far exceeds the SAE requirements, but it also outlasts the competition.  See how our fittings stand up to the competition and learn more about TS1000.



Seal-Lok ORFS for Alternative Fuel Applications

As the push for cleaner fuel alternatives intensifies, Parker continues leading the way with products engineered to optimize fuel conveyance. Parker Seal-LokTM technology introduces a proven O-ring face seal (ORFS) design that performs with a variety of fuels, including CNG, LNG, LPG, and H2, to achieve the most robust, leak-free connection in the industry – period.


Custom Manufacturing & Rapid Service Unit

Transform your unique connection needs into a finished part, and receive it in hand in as soon as 24 hours. Available in almost any size and configuration, our custom tube fittings and adapters can be machined in steel, stainless steel, brass, and aluminum, as well as numerous other materials, and we can comply with most international standards, including SAE, ISO, DIN, JIS, ASTM and MIL.

TFD techConnect

Technical articles focused on hydraulic fitting topics, industry trends, and helpful hints from Parker engineers. Articles include topics such as thread identification, sizing tube for hydraulic system efficiency, tips for routing and clamping tube lines, recommendations on reassembling tube fittings, and many other helpful topics. Written by engineers for engineers, TFD techConnect is the go-to resource for engineers.

TFD ToolSpec

Find the tube fabrication equipment and tooling part numbers that you need for the job with our TFD ToolSpec web app. For short-term and prototype projects, Tube fabrication equipment rentals are also available, and information is included on this site.

Competitive Interchange

Need to identify the Parker part number equivalent? Just enter any competitor part number, and let the Competitive Interchange search a comprehensive database to find the Parker equivalent – in seconds!

CAD Models

Need a hydraulic tube fitting or adapter CAD model for your system design? View the vast library of CAD drawings available for download.

Catalogs and Support Materials

Browse our library of Tube Fittings Division catalogs, product bulletins, equipment manuals, and equipment videos for the information that you need.

Find Your Nearest Tube Fittings and Adapters Distributor

Need a hydraulic tube fitting or adapter, or tube fabrication equipment and tooling? Parker’s worldwide distribution network makes it convenient to get the parts you need, either over the phone or at one of our Parker Stores. Locate the distributor nearest to you.

Contact Us

Parker Hannifin Corporation
Tube Fittings Division
3885 Gateway Blvd.
Columbus, OH  43228
Phone: 614-279-7070
Email: TFDmailbox@parker.com