Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 853-9997 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 853-9997 It is listed as O Ring. component manufactured by Aqua Chem Inc, specifically under CAGE Code 0EXU3. It is also accompanied by the NSN 5331015112660 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC .