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National Stock Number:
5310-00-419-4049
Federal Supply Class:
5310
National Item Identification Number:
004194049
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:
| 32-91023-3 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| HEAT TREATMENT | T-4 SOLUTION HEAT TREATED, NATURAL AGED | | HOLE DIAMETER | 1.280 INCHES NOMINAL | | OUTSIDE DIAMETER | 1.937 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.295 INCHES MINIMUM AND 0.305 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | STYLE DESIGNATOR | RECESSED |
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