Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D-17330 found under Housing Valve Seat by Akron Brass Company. The National Stock Number assigned to this part is 4820011284630, 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 D-17330.