Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number MC21923 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 MC21923 It is listed as Plate Spring Aircra. component manufactured by Eaton Aerospace Llc M C Aerospac, specifically under CAGE Code 76050. It is also accompanied by the NSN 1680015437667 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 1680 Miscellaneous Aircraft Accessories and Components.