Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3415 GROUP 4A PAGE 52 FIGURE 9 found under Cock Poppet Drain by Ab Volvo Penta. The National Stock Number assigned to this part is 4820012895392, 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 3415 GROUP 4A PAGE 52 FIGURE 9.