Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BOM 2448805J P N 21073C found under Float Valve by Griswold Industries Co. The National Stock Number assigned to this part is 4820016147063, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BOM 2448805J P N 21073C.