An 6 Fittings Dimensions

An army navy sizes were established by the aerospace industry years ago.

An 6 fittings dimensions. The numbers are equal to the outside diameter od of the tubing in 1 16. The male port end of the fitting uses straight thread and is received by a female port of corresponding size and thread pitch. Thread dash for jic 37 flared series 23 24 p23 p12 p24 p25 26 connectors. The cone end uses straight thread and a 37 cone.

Can you see the confusion starting. Sizes an sizes are shown as a size number prefixed with a hyphen so a 10 fitting would be called a dash 10 an fitting. An hose sizes were designed to match the id sizes of these rigid tubes. Place fitting against base line.

Here is an an size chart. Port fittings function just like pipe fittings but with the following distinctions. 6 8 10 12 14 and 16. If you can t find an an fitting for your application find a local hydraulic shop and use simple sae fittings.

Pipe thread size chart use the diagram below to find pipe thread size. Read fitting size where it intersects the vertical line. The construction of an aeroquip fitting is shown in the dissected photo below. They may not be red or blue buy they ll fit just fine.

The idea behind an hoses and an fittings was to provide a flexible alternative to rigid tubing in plumbing systems on aircraft and military vehicles. Sizes for rigid tubes were already standardized with sizes called out by tubing od 3 16 1 2 etc. These numbers come from 6 16 8 16 10 16 and 12 16 which generally identify the tube diameter at the point that it passes through the attached threaded nut. The line drawings below depict actual sizes of the various common an thread sizes by dash number.

An fittings come in a range of sizes they are called the dash size because it has a dash followed by two digits. Lay your fitting over the appropriate drawing to determine what size fitting you have. An sizes range from 2 dash two to 32 in irregular steps with each step equating to the od outside diameter of the tubing in 1 16 inch increments. Therefore a 8 an size would be equal to 1 2 inch od tube.

Understanding an fittings all an fittings have a mating flare seat at 37 degrees this guide will use the an name to refer to these fittings. This standard of measurement is based on the nominal outside diameter o d of the rigid metal tube that each size fitting is used with. An thread sizes an army navy sizing was established many years ago by the u s. Port fittings conform to an standards typically per military standard ms33649.

However this system does not specify the id inside diameter of the tubing because the tube wall can vary in thickness. Fitting sizes are identified generally as.