Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1266 found under Control Assembly Sh by Stewart And Stevenson Power Products. The National Stock Number assigned to this part is 2990000410942, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1266.