Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 100020 found under Cylinder Fire Extinguisher by Firetrace Aerospace Llc. The National Stock Number assigned to this part is 4210015665992, 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 100020.