Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X8999-446 found under Cable Assembly Swit by Cooper Crouse Hinds Llc. The National Stock Number assigned to this part is 6150016236083, and the Federal Supply Class is 6150 Miscellaneous Electric Power And Distribution Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like X8999-446.