Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D831022 04 05 07 08 found under Stem Fluid Valve by Bee Line Company. The National Stock Number assigned to this part is 4820012335324, 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 D831022 04 05 07 08.