Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2620-927X2ASSY6FA found under Valve Check by National Oilwell Varco Inc. The National Stock Number assigned to this part is 4820010996079, 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 2620-927X2ASSY6FA.