Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 13216E6174-5 found under Valve Expansion by Cecom Lr Center. The National Stock Number assigned to this part is 4820001894840, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 13216E6174-5.