6346/B( )F

MODEL FSV-1. A STAINLESS STEEL ENCASED, DEPLETED URANIUM SHIELDED CASK. THE CASK BODY IS A CYLINDER 208-INCHES LONG AND 28 INCHES IN DIAMETER, EXCEPT FOR THE THE TOP FLANGE AREA WHICH IS 31 INCHES IN DIAMETER. THE CAVITY IS APPROXIMATELY 17.7 INCHES IN DIAMETER AND 187.6-INCHES LONG. THE CASK MAY BE USED IN ONE OF SEVEN CONFIGURATIONS (A THROUGH 6) DEPENDING ON CONTENTS. CONFIGURATIONS A, B, C, AND D ARE USED TO SHIP SOLID, NON-FISSILE IRRADIATED HARDWARE. THESE CONFIGURATIONS USE AND OUTER LID CONSISTING OF A 3.75-INCH THICK SS PLATE AND A 2.25 INCH THICK DEPLETED URANIUM SHIELD. THE LID IS BOLTED TO THE CASK BODY BY TWENTY-FOUR 1.25-INCH DIAMETER FASTENERS. THE PRIMARY SEAL IS A SILICONE ELASTOMERIC SEAL RING BETWEEN THE OUTER LID AND CASK BODY. CONFIGURATION B DOES NOT REQUIRE AN INNER CONTAINER. CONFIGURATION C USES A SUPPLEMENTAL SS SHIELD RING AND COVER PLATE. CONFIGURATION D USES A SUPPLEMENTAL CARBON STEEL SHIELD RING AND COVER PLATE. CONFIGURATION E IS USED TO SHIP FORT ST. VRAIN (FSV) HIGH TEMP. GAS REACTOR (HTGR) FUEL ELEMENTS. THIS CONFIGURATION USES THE SS INNER CONTAINER AS THE CONTAINMENT VESSEL. THE INNER CONTAINER LID IS A SS SHELL CONTAINING DEPLETED U 4.15-INCHES THICK. THE INNER LID IS SECURED TO THE INNER CONTAINER BODY BY TWELVE 0.5-INCH DIAMETER FASTENERS. THE PRIMARY SEAL IS A SILICONE ELASTOMERIC SEAL RING BETWEEN THE INNER LID AND INNER CONTAINER BODY. CONFIGURATIONS E IS EQUIPPED WITH AN IMPACT LIMITER ON THE UPPER END.