Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T101490 found under Valve Check by Davco Mfg Corp. The National Stock Number assigned to this part is 4820014089958, 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 T101490.