Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BB3N10 found under Valve Safety Relief by Dana Off Highway Products Llc. The National Stock Number assigned to this part is 4820002025632, 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 BB3N10.