Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SCB21808 found under by Valcore Manufacturing Llc. The National Stock Number assigned to this part is 5850005238688, and the Federal Supply Class is 5850 Visible And Invisible Light Communication Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SCB21808.