Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 316307 found under Demineralizer Water Ion Exchange by Curtin Matheson Scientific Inc. The National Stock Number assigned to this part is 4610000099853, 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 316307.