Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S1AK23 found under Lock Valve Spring R by Curtiss Wright Electro Mechanical Corporation Div Steam And Air Solutions. The National Stock Number assigned to this part is 2815004590488, 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 S1AK23.