Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number RS520-040 with rapid responses always offered by our staff. To ensure that you locate and procure exactly what you need with ease, we list parts with as much information as we can. For example, part number RS520-040 It is listed as Ring Set. component manufactured by Mcquay Inc, specifically under CAGE Code 76255. It is also accompanied by the NSN 2805003583393 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 2805 Gasoline Reciprocating Engines Except Aircraft and Components.