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		                             National Stock Number: 5210-00-203-4654
  Federal Supply Class: 5210
  National Item Identification Number: 002034654
  Description: OPTICAL FLAT SET
  Detail: TWO OR MORE OPTICAL FLATS. EXCLUDES OPTICAL PARALLELS.
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  Manufacturer Information:
 | GG-0-635A | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |  | GG-O-635A | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |  | MIL026901AMEND1CLASS3SET7 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |   
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  Techincal Specification:
 | DEPARTURE FROM CITED DOCUMENT | AS MOD BY MIL-O-26901 AMEND 1 |  | NONDEFINITIVE SPEC/STD DATA | 3 CLASS AND 7 SET |  | SPECIAL FEATURES | FLAT 2 FUSED QUARTZ REFERENCE DOUBLE TYPE 0.000001 IN. FLATNESS ACCURACY 6 IN. DIA. 1 IN. THK;W/CASE |   
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