Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 26-109 found under Housing Rotor by Stewart And Stevenson Power Inc. The National Stock Number assigned to this part is 2990012272529, 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 26-109.