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National Stock Number:
5310-01-253-3012
Federal Supply Class:
5310
National Item Identification Number:
012533012
Description:
WASHER,RECESSED
Detail:
A WASHER OF ANY PERIPHERAL SHAPE HAVING A CENTRALLY LOCATED HOLE. BOTH BEARING SURFACES ARE PARALLEL AND FLAT, BUT ONE OR BOTH OF THE BEARING SURFACES MUST BE BROKEN BY A COUNTERBORE, COUNTERSINK, OR SIMILARLY SHAPED RECESS. THE THICKNESS MUST NOT EXCEED 25 PER CENT OF THE OUTSIDE DIAMETER OR THE LARGEST OUTSIDE DIMENSION. THE MAXIMUM LIMIT OF THE TOLERANCE OR RANGE APPLIED TO THE THICKNESS AND/OR LARGEST OUTSIDE DIMENSION MUST BE USED TO DETERMINE COMPLIANCE. EXCLUDES WASHER, CONCAVE, RETAINER, PACKING, AND THRUST TYPE WASHERS. SEE ALSO SPACER, SLEEVE; AND SPACER, STEPPED.
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Manufacturer Information:
| 68A411054-2007 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| HOLE DIAMETER | 0.386 INCHES MINIMUM AND 0.393 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | | | MATERIAL | | | MATERIAL THICKNESS | 0.125 INCHES NOMINAL | | OUTSIDE DIAMETER | 0.750 INCHES NOMINAL | | RECESS DIAMETER | 0.564 INCHES NOMINAL | | RECESS ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | SPECIAL FEATURES | CHAMFER TOP OUTSIDE EDGE 0.030 IN. BY 40 DEG MIN 50 DEG MAX | | STYLE DESIGNATOR | RECESSED |
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