Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PLG-75 found under Disk Valve by Dresser Rand Co. The National Stock Number assigned to this part is 4820011375467, 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 PLG-75.