Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FC-203 found under Foam Liquid Fire Extinguishing by 3M Company. The National Stock Number assigned to this part is 4210014697434, and the Federal Supply Class is 4210 Firefighting Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FC-203.