Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E0058500-1 FIND 12 found under Core Assembly Fluid Cooler by Xchanger Manufacturing Corporation. The National Stock Number assigned to this part is 4420015089131, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like E0058500-1 FIND 12.