Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RE521162 found under Valve Air Emission Control by C K Power Products Corp. The National Stock Number assigned to this part is 2990015560337, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RE521162.