Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 6221 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 6221 It is listed as Block Cylinder. component manufactured by Eaton Aerospace Llc Use Cage Cod, specifically under CAGE Code 90166. It is also accompanied by the NSN 1650001334414 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 1650 Aircraft Hydraulic Vacuum and De-icing System Components.