Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 204-0-250PSIA found under Transmitter Pressure by Setra Systems Inc. The National Stock Number assigned to this part is 6685012248882, 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 204-0-250PSIA.