Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S6142 66607 1 found under Damper Air Duct by Sikorsky Aircraft Corporation. The National Stock Number assigned to this part is 1660009387175, and the Federal Supply Class is 1660 Aircraft Air Conditioning Heating And Pressurizing Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S6142 66607 1.