Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number B2731 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 B2731 It is listed as Valve Relief. component manufactured by Enertech Technical Services Corp, specifically under CAGE Code 12190. It is also accompanied by the NSN 4820010427934 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 4820 Valves Nonpowered.