Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 301 2-INCH 150-GPM found under Meter Flow Rate Indicating by Ernst John C And Co Inc. The National Stock Number assigned to this part is 6680011286274, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 301 2-INCH 150-GPM.