Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number TCT21-2012 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 TCT21-2012 It is listed as Block Holding Cylin component manufactured by Textron Lycoming Inc, specifically under CAGE Code 80254. It is also accompanied by the NSN 4920002122198 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 4920 Aircraft Maintenance And Repair Shop Specialized Equipment.