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National Stock Number:
5310-01-286-2559
Federal Supply Class:
5310
National Item Identification Number:
012862559
Description:
WASHER,CONCAVE
Detail:
A WASHER WHICH IS ROUND WITH A CENTRALLY LOCATED HOLE. ONE BEARING SURFACE IS SMOOTH, FLAT, AND UNBROKEN, THE OTHER BEARING SURFACE IS SMOOTH, UNBROKEN, AND IS RECESSED TO FORM A CURVED OR SPHERICAL CONTOUR. SEE ALSO WASHER (1), CONVEX. EXCLUDES WASHER (1), RECESSED AND BEARING, WASHER, THRUST.
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Manufacturer Information:
| 65155-00125-101 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| HOLE DIAMETER | 0.688 INCHES NOMINAL | | OUTSIDE DIAMETER | 1.250 INCHES NOMINAL | | MATERIAL THICKNESS | 0.200 INCHES NOMINAL | | MATERIAL | TITANIUM ALLOY OVERALL | | RADIUS | 3.820 INCHES NOMINAL | | RECESS DEPTH | 0.010 INCHES NOMINAL | | SPECIAL FEATURES | PRIME CONCAVE SURFACE ONLY; USE EC3917 | | STYLE DESIGNATOR | CONCAVE | | SURFACE FINISH | 32.0 MICROINCHES BOTTOM |
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