Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 48447B found under Valve Assembly Ball by Dla Land And Maritime. The National Stock Number assigned to this part is 4820012609177, 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 48447B.