Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 58051 found under Stem Valve by Ryan Industries Div Of Cordon. The National Stock Number assigned to this part is 4820009773150, 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 58051.