Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4070S found under Adapter Engine Pressure Transmit by Breezeeastern Corporation. The National Stock Number assigned to this part is 6620001456777, and the Federal Supply Class is 6620 Engine Instruments. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4070S.