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National Stock Number:
5220-01-581-3998
Federal Supply Class:
5220
National Item Identification Number:
015813998
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:
| 2245A72 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| MATERIAL | GRANITE | | SPECIAL FEATURES | 4 INCHES THICK-TWO LEDGES;RUSTPROOF AND NONMAGNETIC;NONGLARE BLACK FINISH | | SPECIAL TEST FEATURES | MEETS/EXCEEDS SPEC GGG-P-463C AND ISO 10012 | | SUPPLEMENTARY FEATURES | GRANITE SURFACE PLATE;LABORATORY GRADE AA;NIST CERTIFICATION OF ACCURACY INCLUDED | | SURFACE LENGTH | 18.000 INCHES NOMINAL | | SURFACE WIDTH | 12.000 INCHES NOMINAL | | WORKING SURFACE FINISH | HAND SCRAPED EQUIVALENT | | WORKING SURFACE QUANTITY | 2 |
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