Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1144004 04 04 found under Valve Flow Control by Mk Test Systems. The National Stock Number assigned to this part is 4820014425763, 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 1144004 04 04.