Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 21003 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 21003 It is listed as Retainer Electron T. component manufactured by Leica Microsystems Inc, specifically under CAGE Code 78039. It is also accompanied by the NSN 5960005210221 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 5960 Electron Tubes and Associated Hardware.