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		                        | National Stock Number:
 4420-01-352-8085
 
 Federal Supply Class:
 4420
 
 National Item Identification Number:
 013528085
 
 Description:
 HEATER,FLUID,INDUSTRIAL
 
 Detail:
 AN APPARATUS DESIGNED TO RAISE THE TEMPERATURE OF A FLUID BY BRINGING IT INTO PROXIMITY WITH ANOTHER FLUID OF HIGHER TEMPERATURE SO THAT HEAT TRANSFER IS EFFECTED BY DIRECT CONTACT OR BY PASSING THOSE FLUIDS THROUGH PIPE(S), TUBE(S), OR COILS WHICH ARE SUBMERGED IN A TANK OF HOT WATER OR STEAM WHICH IS SUPPLIED FROM AN OUTSIDE SOURCE. THE FLUID IS NEVER STORED IN THIS TANK. EXCLUDES AIR CONDITIONING, ELECTRIC FLUID HEATERS, AND REFRIGERATION EQUIPMENT.
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 Manufacturer Information:
 
 | 149D3506 | 99971 | LOCKHEED MARTIN CORP NAVAL ELECTRONICS & SURVEILLANCE SYSTEMS |  | 149D3506P0001 | 99971 | LOCKHEED MARTIN CORP NAVAL ELECTRONICS & SURVEILLANCE SYSTEMS |  | 149D3506P1 | 99971 | LOCKHEED MARTIN CORP NAVAL ELECTRONICS & SURVEILLANCE SYSTEMS | 
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 Techincal Specification:
 
 | MATERIAL | ALUMINUM ALLOY OVERALL |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | 
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