Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4066166-01 found under Manifold Fluid Airc by E A Patten Co The. The National Stock Number assigned to this part is 2995012158140, and the Federal Supply Class is 2995 Miscellaneous Engine Accessories Aircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4066166-01.