Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3W66637 found under Separator Element by Alfred Conhagen Inc. The National Stock Number assigned to this part is 3655009948276, and the Federal Supply Class is 3655 Gas Generating And Dispensing Systems Fixed Or Mobile. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3W66637.