Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 108390-7 found under Regulator Air Pressure Aircraft Cabin by Alliedsignal Inc. The National Stock Number assigned to this part is 1660007880710, 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 108390-7.