Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C7528-8 found under Heat Exchanger Assy by Olin Corporation. The National Stock Number assigned to this part is 1660006035954, and the Federal Supply Class is 1660 Aircraft Air Conditioning Heating And Pressurizing Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C7528-8.