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		                        | National Stock Number:
 6645-01-491-4910
 
 Federal Supply Class:
 6645
 
 National Item Identification Number:
 014914910
 
 Description:
 STANDARD,TIME BASE
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 Manufacturer Information:
 
 | 9010-687 | 55761 | EFRATOM TIME & FREQUENCY PRODUCTS INC | 
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 Techincal Specification:
 
 | ACCESSORY COMPONENTS AND QUANTITY | ATTU 10,ATTU INTERFACE,COMPUTER,BATTERY PACK,DC POWER SUPPLY,EXACTDG GPS |  | OVERALL HEIGHT | 69.060 INCHES NOMINAL |  | OVERALL LENGTH | 2.3000 INCHES NOMINAL |  | SPECIAL FEATURES | BACK-UP TIME STANDARD,USED ON B2 AIRCRAFT,RETAINS TIME IN ATTU UNITS WHICH ARE CONSTANTLY UPDATED FROM GPS SATELITES. | 
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