Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number IT-5909 found under Bellows Pressure by Industrial Tube Company Llc. The National Stock Number assigned to this part is 1660015048466, 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 IT-5909.