Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SA1644-3D0B found under Switch Assembly Spe by Woodward Controls Inc. The National Stock Number assigned to this part is 5930010219378, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SA1644-3D0B.