Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2475A 1 1-2IN BWE 26799-P found under Valve Globe by William Powell Company The. The National Stock Number assigned to this part is 4820011221375, 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 2475A 1 1-2IN BWE 26799-P.