Interchangeability is the ability of an entity (e.g. part, item, component, etc) to replace another without alteration to fulfill the same requirement. Several combinations of one-way, two-way or conditional interchangeabilities exist. Please consult applicable manuals for details.

If a part has suggestions for interchangeables, it will show on the search result page like this:

Once you select a product and go to the product detail page, symbols next to the interchangeable part will tell you if the interchangeability is one-way or two-way.

Part Interchangeability Data provided on Satair Market do not constitute authority to install. In all cases aircraft maintenance records must contain installation certification issued in accordance with the national regulations by the user/installer before the aircraft may be flown.

If you search for “part A” and “part B” shows up as a suggested one-way interchangeable for “part A”, it means that “part A” can be exchanged with “part B”, but “part B” can never be exchanged with “part A”.

When there is a one-way interchangeability option it looks like this:

Part Interchangeability Data provided on Satair Market do not constitute authority to install. In all cases aircraft maintenance records must contain installation certification issued in accordance with the national regulations by the user/installer before the aircraft may be flown.

If you search for “part A” and “part B” shows up as a suggested two-way interchangeable for “part A”, it means that “part A” can be exchanged with “part B”, but “part B” can also be exchanged with “part A”.

When there is a two-way interchangeability option it looks like this:

Part Interchangeability Data provided Satair Market do not constitute authority to install. In all cases aircraft maintenance records must contain installation certification issued in accordance with the national regulations by the user/installer before the aircraft may be flown.