Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XS109-1PC3 found under Cylinder Sleeve by Leslie Controls Inc. The National Stock Number assigned to this part is 2815004463357, and the Federal Supply Class is 2815 Diesel Engines And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like XS109-1PC3.