Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C8313 IT5 found under Valve Regulating Fluid Pressure by Pratt Henry Co. The National Stock Number assigned to this part is 4820013253568, 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 C8313 IT5.