Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EV46398ALB-020 found under Valve Control by Betts Industries Inc. The National Stock Number assigned to this part is 4820011321676, 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 EV46398ALB-020.