Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number DD-4633 REF NO 2 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 DD-4633 REF NO 2 It is listed as Plug Rotary Valve. component manufactured by Cunico Corporation, specifically under CAGE Code 53424. It is also accompanied by the NSN 4820014080184 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 4820 Valves Nonpowered.