Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BGSKK05SMM found under Valve Safety Relief by Dante Valve Company Inc. The National Stock Number assigned to this part is 4820012025588, 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 BGSKK05SMM.