Welcome To L & L Fittings

Hydraulic Fittings
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Welcome to L & L Fittings Manufacturing. Since 1936, we have offered high quality industrial grade steel hydraulic fittings. Whether you require SAE standard hydraulic fittings or unique configurations based on detailed specifications, we maintain a large industrial selection of hydraulic fittings applicable to your needs.

Fitting Inventory

Our high quality hydraulic fitting service begins with a look at our extensive fittings catalog. Our catalog contains a full range of fitting components for you to choose from. Custom made-to-fit components can also be ordered. We can create highly specialized hydraulic systems that have standard and custom components simply by receiving a sketch and your design specifications. We work with the following fitting components:

  • SAE Boss Hydraulic Adapters
  • JIC 37 Degree Fittings
  • Pipe Fittings
  • Metric Hydraulic Fittings
  • Metric to American Conversion Fittings
  • British Parallel Hydraulic Fittings
  • British Taper Hydraulic Fittings
  • Hydraulic Adapters
  • ISO Hydraulic Fittings
  • Special Hydraulic Adapters
  • Metric 24 Degree Flareless Hydraulic Adapters
Fittings Sale

Design & Manufacturing Process

All of our standard inventory and custom fitting components adhere to our high quality in-house manufacturing process. As a true industrial pioneer, the founder of L & L fittings Mfg., Mr. G.T. Lyons, originally developed, perfected and patented the copper brazing process that ensures joints remain leak-free.

At L & L Fittings, we continue the tradition by staying up to date with the latest hydraulic fittings design and manufacturing processes. This begins with the designing of each component by our engineering staff with the help of CAD, CAM and FEA software. The designs are transformed into physical components by our professional machinists who operate the latest CNC drilling and turning equipment. Components are taken through the Thermal Deburring process, where all metal burrs are eliminated via intense heat and oxidization before being passed through our automated washing system to eliminate metal contaminants. We also maintain a micro particle clean lab for specified components that must meet extraordinary cleanliness standards.

High Quality Standards

We ensure that our design and manufacturing processes are of the highest quality by maintaining proper certification and in-house inspections. We are a TS-16949 Certified manufacturer and use a range of quality processes. They include:

Using gage certification and a rotating gage calibration schedule to make sure the dimensions of each fitting component is 100% accurate based on specified measurements.

Individually trained employees capable of operating Statistical Process Control software as well as additional statistical techniques to monitor and control the manufacturing process. With strict statistical analysis and control, we can ensure that each identical fitting component you order is absolutely identical to each other and that custom components are true to the design specifications.

Real Time Quality Data Acquisition managed by each individual machine operator provides us with an additional element of quality assurance. We are able to obtain data from each manufacturing sequence as the machining process is happening in real time.

Our in-house TS-16949 certified quality assurance process has been recognized by the following companies: Ford, International Truck and Engine, J.I. Case Co., Gates Rubber Company, and Bendix Allied Signal.

Special Manufacturing

Our manufacturing portfolio also contains considerable experience in the following types of specialty fittings and parts: Metric Conversion Adapters such as metric straight threads, British tapered and parallel pipe threads to convert from SAE ends. Specialty machined parts, including screw machine parts, precision milling as well as finish machining for near net shape iron castings and steel cold-headed parts.

Packaging and Shipping

All L & L fitting orders are packaged in-house by our employees in strong cartons wrapped in protective caps. All packages are clearly labeled with text and bar information. We use standard national and international carriers and generally have stock orders shipped within the same day. Customers may also inquire about our Just-In-Time manufacturing process or expedited manufacture and shipping for products needed within 24 hours.

Customer Service

Not sure what you need? Our customer service staff will help you find the exact inventory components you need or assist in suggesting custom spec components to match your needs. Our website will also help guide you through the various metal types of hydraulic fittings and their uses based on specific industries such as agricultural, automotive, commercial, industrial, construction and more. Provide us with a faxed or email sketch of your required hydraulic fitting components along with the desired quantity and we will be able to give you a quote within 24 hours.

Thank you for visiting L & L Fittings.

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