Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 12173 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 12173 It is listed as Shaft Shouldered. component manufactured by Mid America Aviation Inc, specifically under CAGE Code 0UES3. It is also accompanied by the NSN 3040000965543 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 3040 Miscellaneous Power Transmission Equipment.