4909/AF

MODEL GE-21PF-1 PACKAGE. OVERPACK FOR 30-INCH DIAMETER ENRICHED URANIUM HEXAFLUORIDE (UF6) CYLINDERS. THE OVERPACK IS A RIGHT CIRCULAR CYLINDER CONSTRUCTED OF TWO STAINLESS STEEL SHELLS. THE ANNULAR VOLUME BETWEEN THE SHELLS IS FILLED WITH WOOD BLOCKS AND FIRE-RESISTANT PHENOLIC FOAM APPROXIMATELY 6 INCHES THICK. THE FOAM IS IN ACCORDANCE WITH USAEC SPECIFICATION SP-9, REV. 1, AND SUPPLEMENT K/TL-729. A STEPPED AND GASKETED HORIZONTAL JOINT PERMITS THE TOP HALF OF THE OVERPACK TO BE REMOVED FROM THE BASE. THE PACKAGE "HALVES" ARE SECURED WITH FOURTEEN, 3/4-INCH BOLT/NUT WASHER ASSEMBLIES. THE OVERPACK IS APPROXIMATELY 43-5/8 INCHES OD BY 95-1/2 INCHES LONG. MAXIMUM GROSS WEIGHT OF THE PACKAGE IS 8600 POUNDS.