BATAVIA, N.Y.--( BUSINESS WIRE )--Graham Corporation (NYSE: GHM) ("Graham" or "the Company"), a global leader in the design and manufacture of mission critical fluid, power, heat transfer, and vacuum technologies for the defense, space, energy, and process industries, today announced that its wholly-owned subsidiary Barber-Nichols, LLC ("Barber-Nichols") has been awarded a $136.5 million follow-on contract to support the U.S. Navy's Virginia Class Submarine program. The period of performance exte...