Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 21593 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 21593 It is listed as Gear Annulus. component manufactured by Aircraft Parts Corporation, specifically under CAGE Code 32970. It is also accompanied by the NSN 2925001829720 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 2925 Engine Electrical System Components Aircraft Prime Moving.