Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 21C1-3-7 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 21C1-3-7 It is listed as Switch Pressure. component manufactured by Eaton Aerospace Llc Div Electric, specifically under CAGE Code 02750. It is also accompanied by the NSN 5930014486309 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 5930 Switches.