Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AF 1680 11EC found under Valve Assembly Wind by Trico Products Corporation. The National Stock Number assigned to this part is 2540013027177, 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 AF 1680 11EC.