Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number C640 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 C640 It is listed as O Ring. component manufactured by Universal Equipment Mfg Co Inc, specifically under CAGE Code 51835. It is also accompanied by the NSN 5331012787621 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC .