9183

Jul 17, 2015, 00:40 AM
MODEL NAC-1. A STEEL AND LEAD SHIELDED SHIPPING CASK. THE CASK IS A RIGHT CIRCULAR CYLINDER WITH UPPER AND LOWER STEEL ENCASED BALSA IMPACT LIMITERS. THE OVERALL DIMENSIONS ARE 214 INCHES IN LENGTH AND 50 INCHES IN DIAMETER. THE GROSS WEIGHT OF THE CASK IS APPROXIMATELY 49,000 POUNDS. THE INNER CAVITY IS 178 INCHES LONG AND 13.5 INCHES IN DIAMETER. THE THICKNESS OF THE INNER SHELL IS 5/16 INCH, AND THE THICKNESS OF THE OUTER SHELL IS 1-1/4 INCHES. THE TWO STAINLESS STEEL SHELLS ARE WELDED TO A 2-INCH THICK STAINLESS STEEL SHIELD DISC AT THE BOTTOM. THE ANNULUS BETWEEN THE INNER AND OUTER SHELLS IS FILLED WITH LEAD (LEAD THICKNESS: 6-5/8 INCHES MAXIMUM, 5 INCHES MINIMUM). THE STAINLESS STEEL LID IS A FRUSTRUM OF A CONE 7.5 INCHES THICK. THE LID IS SECURED TO THE CAVITY FLANGE BY SIX, ASTM-A320, GRADE L43, 1-1/4-INCH DIAMETER BOLTS. THE SEAL IS PROVIDED BY TWO POLYTETRAFLUOROETHY LENE O-RINGS. FOUR TRUNNIONS, TWO LOCATED ON EITHER SIDE OS THE UPPER OR LOWER IMPACT LIMITER, ARE PROVIDED. OUTER CASK FEATURES INCLUDE TWO DRAIN VALVES LOCATED IN THE BOTTOM SHIELD DISC, VENT VALVE, HEAD CLOSURE GASKET LEAK CHECK VALCE, AND RUPTURE DISC -PRESSURE RELIEF VALVE SYSTEM LOCATED IN THE CAVITY FLANGE. FOR TRANSPORT, THE CASK MAY BE ENCLOSED IN AN EXPANDED METAL CAGE OR CLOSED SHIPPING CONTAINER. **SEE CERTIFICATE FOR CONTENT/WEIGHT LIMITS**
Certificate no:
USA/9183/B( )F
Package Type:
B
Historical Flag:
N
Doe Flag:
Y



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