Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 676519 found under Valve Pneumati by Spicer Heavy Axle And Brake Inc. The National Stock Number assigned to this part is 4820015781690, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 676519.