Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C-50980 found under Vent Assembly by Mirada Research And Manufacturing. The National Stock Number assigned to this part is 4220000759389, and the Federal Supply Class is 4220 Marine Lifesaving And Diving Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like C-50980.