Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 21799-1 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 21799-1 It is listed as Armor Supplemental. component manufactured by Ceradyne Inc, specifically under CAGE Code 52969. It is also accompanied by the NSN 1560001258869 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 1560 Airframe Structural Components.