Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 391-3681-001 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 391-3681-001 It is listed as Valve Check. component manufactured by Commercial Stamping And Forging Inc, specifically under CAGE Code 82338. It is also accompanied by the NSN 4820012344772 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 4820 Valves Nonpowered.