Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 257B 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 257B It is listed as Plug Vacuum Pump Dr. component manufactured by Textron Lycoming Inc Williamspor, specifically under CAGE Code 80254. It is also accompanied by the NSN 2810009797520 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 2810 Gasoline Reciprocating Engines Aircraft Prime Mover and Components.