Use this app to find the correct O-ring for one of the many listed Hydraulic Fitting types. Select the fitting style, and the app will give you details on that style along with a list of the various common sizes and the standard O-ring that fits that size. Select a size from that list for more information about that O-Ring to help you locate it.

Fittings covered are:
• Flange, both Code 61 & 62
• O-Ring Face fitting
• O-Ring Boss Port
• BSPP, British Standard Parallel Port
• ISO 6149 Metric Port
• ISO 9974 Metric Port
• DIN 2353 tube fittings
• JIS, Japanese Industrial Standard Port (BSPP)

Sizes use either the US industry standard Dash size or metric.
US dash is based on 1/16" and parts are called out as: -2, -4, -6. Where -2 is 2/16" or 1/8" and -8 is 8/16" or 1/2" and so forth.

Whenever possible the SAE AS568 standard O-Ring size is used. If not available then the conventional metric ID x Cross based on the fitting size is used. For the JIS Port JIS B2401 sizes are specified.