Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HD-1165 USC-38(V found under Heat Exchanger Air To Water Airc by Joint Electronics Type Designation. The National Stock Number assigned to this part is 1660012998502, 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 HD-1165 USC-38(V.