Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 54494 90052 found under Valve Pneumatic by Aai Corporation. The National Stock Number assigned to this part is 4810010172352, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 54494 90052.