Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2-JB947 P1 found under Seat Valve by Westinghouse Electric Corp. The National Stock Number assigned to this part is 4820012147061, 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 2-JB947 P1.