Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 35-0900 found under Valve Swing Check by Sweeney Engineering Corp. The National Stock Number assigned to this part is 2915009625883, and the Federal Supply Class is 2915 Engine Fuel System Components Aircraft And Missile Prime Movers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 35-0900.