Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1G6481 found under Valve Calibrated Fl by Caterpillar Inc. The National Stock Number assigned to this part is 4820013890367, 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 1G6481.