Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number MMD-3921 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 MMD-3921 It is listed as Sprocket Wheel. component manufactured by Appleton Marine, specifically under CAGE Code 70433. It is also accompanied by the NSN 3020015304756 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 3020 Gears Pulleys Sprockets and Transmission Chain.