Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 56T11NPT found under Valve Regulating Temperature by Sterling Inc. The National Stock Number assigned to this part is 4820006280442, 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 56T11NPT.