Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SST-2000A-4 found under Transducer Motional Pickup by Governor Control Systems Inc. The National Stock Number assigned to this part is 6695013526139, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SST-2000A-4.