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		                             National Stock Number: 4470-00-167-3595
  Federal Supply Class: 4470
  National Item Identification Number: 001673595
  Description: SEAL RING,NUCLEAR COOLANT SYSTEM
  Detail: AN ITEM DESIGNED TO BE SEAL WELDED TO SEGMENTS ON COMPONENTS OF A NUCLEAR POWER PLANT COOLANT SYSTEM, SUCH AS VALVES, DEMINERALIZERS, HEAT EXCHANGERS, PUMPS, AND THE LIKE, TO FORM AN EFFICIENT SEAL AGAINST THE LEAKAGE OF THE PRIMARY COOLANT TO THE AMBIENT. EXCLUDES SEAL RING, METAL.
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  Manufacturer Information:
 | 820-2178580-85 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | 820-2178622-67 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | 820-2178632-37 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | 820-2178639 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | 820-4385031-61 | 53711 | NAVAL SEA SYSTEMS COMMAND |  | 820-2179382-36 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | 820-4385031-61 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | 820-4385031PC61 | 80064 | NAVAL SHIP SYSTEMS COMMAND |  | 8910B-1/2-722-28 | 95169 | CURTISS-WRIGHT FLOW CONTROL CORPORATION |   
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  Techincal Specification:
 | CRITICALITY CODE JUSTIFICATION | ZZZY |  | MATERIAL | STEEL COMP 304 |  | METALLIC HARDNESS RATING | 90.0 NOMINAL ROCKWELL B |  | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTERACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |   
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