Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2B3-06565 found under Compensator Vent Va by Lake Shore Systems Inc. The National Stock Number assigned to this part is 4820014415244, 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 2B3-06565.