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National Stock Number: 5220-00-421-8752
Federal Supply Class: 5220
National Item Identification Number: 004218752
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:
| 30X60X10A | 57163 | L.S. STARRETT COMPANY (THE) | | 80722 | 57163 | L.S. STARRETT COMPANY (THE) |
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Techincal Specification:
| MATERIAL | GRANITE | | SURFACE LENGTH | 60.000 INCHES NOMINAL | | SURFACE WIDTH | 30.000 INCHES NOMINAL | | WORKING SURFACE FINISH | HAND SCRAPED EQUIVALENT | | WORKING SURFACE QUANTITY | 1 |
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