Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SG-1000-3A found under Indicator Sight Liquid by Rotaryaire Compressor Corp. The National Stock Number assigned to this part is 6680014354068, 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 SG-1000-3A.