Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SC-C-647156 found under by Mar May Precision Co. The National Stock Number assigned to this part is 5855003272112, and the Federal Supply Class is 5855 Night Vision Equipment Emitted And Reflected Radiation. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SC-C-647156.