Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SIGMATEST 2.069 found under Detector Metal Flaw Electronic by Foerster Instruments Incorporated. The National Stock Number assigned to this part is 6635015751731, 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 SIGMATEST 2.069.