Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S1 1000 found under Flow Switch High Pr by Engineered Air Systems Inc. The National Stock Number assigned to this part is 5930015617434, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S1 1000.