Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T44-24D2 found under Valve Rotary Select by Teledyne Technologies Inc. The National Stock Number assigned to this part is 4820012051277, 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 T44-24D2.