Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U17677 found under Strainer Suction As by Siemens Water Technologies Corp. The National Stock Number assigned to this part is 4610006551348, and the Federal Supply Class is 4610 Water Purification Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like U17677.