Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 57A17C78 found under Clutch by Navair And Navsea Managed. The National Stock Number assigned to this part is 6105003696062, and the Federal Supply Class is 6105 Motors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 57A17C78.