Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GO5581-1788 found under Indicator Pressure by Curtiss Wright Corp. The National Stock Number assigned to this part is 6620015963642, 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 GO5581-1788.