6601

MODEL CNS 8-120A. THE PACKAGING IS A STEEL ENCASED, LEAD SHIELDED SHIPPING CASK WHICH WEIGHS APPROXIMATELY 70,000 POUNDS WHEN LOADED. THE CASK IS 73.5 INCHES IN DIAMETER BY 92 INCHES HIGH, WITH AN EFFECTIVE CAVITY 62 INCHES IN DIAMETER BY 75 INCHES LONG. GAMMA SHIELDING EQUIVALENT TO 4.5 INCHES OF LEAD IS PROVIDED BY LEAD AND STEEL. THE OUTER SHELL IS FABRICATED OF TWO, 3/4-INCH THICK STEEL PLATES AND THE INNER SHELL OF 1/2-AND 1/4-INCH THICK PLATES. THE CAVITY IS CLOSED AND SEALED BY THIRTY-TWO, 1-3/4-INCH BOLTS AND A SILICONE O-RING WITHIN A RECESSED GROOVE ON THE FLANGE OF THE CASK. A STEEL COLLAR ENCIRCLES THE OUTER SHELL IN THE LID AREA. SHACKLES ARE USED FOR LIFTING THE PACKAGING AND THE LID. TIE-DOWN IS ACCOMPLISHED THROUGH A STEEL STRUCTURE WHICH IS NOT ATTACHED TO THE PACKAGE. THE LID PROVIDES SEVERAL THREADED AND SEALED ACCESS PLUGS AND THE BASE HAS A DRAIN LINE.