Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 40559 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 40559 It is listed as Lockspring Turnlock Fastener. component manufactured by Eaton Aerospace Llc, specifically under CAGE Code 62983. It is also accompanied by the NSN 5325011913029 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 5325 Fastening Devices.