Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 10C 0005 0074 found under Tube Assy Relief by Essex Industries Inc. The National Stock Number assigned to this part is 1660009253184, 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 10C 0005 0074.