Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 813-00521 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 813-00521 It is listed as Resistor Variable Wire Wound Precision. component manufactured by Engis Corporation, specifically under CAGE Code 20566. It is also accompanied by the NSN 5905002396791 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 5905 Resistors.