Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 612003 found under Diaphragm Pressure Switch by Bei Sensors And Systems Co Inc. The National Stock Number assigned to this part is 5930010359523, 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 612003.