Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 959 61 81 191 found under Valve Pneumatic Tir by Pilatus Aircraft Ltd. The National Stock Number assigned to this part is 2640013403204, and the Federal Supply Class is 2640 Tire Rebuilding And Tire And Tube Repair Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 959 61 81 191.