Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SA20811 found under Support Seat Vehicular by Sears Mfg Co. The National Stock Number assigned to this part is 2540015488016, and the Federal Supply Class is 2540 Vehicular Furniture And Accessories. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SA20811.