Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K74-B-125-6-GLV2 found under Meter Flow Rate Indicating by King Instrument Company Inc. The National Stock Number assigned to this part is 6680014493431, 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 K74-B-125-6-GLV2.