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National Stock Number: 5220-00-517-5419
Federal Supply Class: 5220
National Item Identification Number: 005175419
Description: PLATE,SURFACE
Detail: A RECTANGULAR OR SQUARE PRECISION TOOL HAVING A FLAT WORKING SURFACE(S) OF SPECIFIC FLATNESS. IT IS USED AS A DATUM PLANE IN CONNECTION WITH VARIOUS LAYOUT, INSPECTION, AND CALIBRATION OPERATIONS. IT MAY ALSO BE USED AS A LAPPING PLATE, BUT IS NOT GROOVED. SEE ALSO BLOCK, LAPPING; PLATE, DUPLEX, SURFACE AND LAPPING; AND PLATE, LAPPING.
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Manufacturer Information:
FEDGGGP453TYPE1GRADEA | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
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Techincal Specification:
MATERIAL | IRON CAST | NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND A GRADE | WORKING SURFACE FINISH | HAND SCRAPED | WORKING SURFACE QUANTITY | 1 | SURFACE LENGTH | 48.000 INCHES NOMINAL | SURFACE WIDTH | 36.000 INCHES NOMINAL |
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