Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 45C101 found under Cooler Fluid Transmission by Senner Karl Inc. The National Stock Number assigned to this part is 2520012901669, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 45C101.