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National Stock Number: 5310-01-434-4273
Federal Supply Class: 5310
National Item Identification Number: 014344273
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:
BACW10AW-C307AS | 81205 | THE BOEING COMPANY |
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Techincal Specification:
MATERIAL | ALUMINUM ALLOY 2024 OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | SURFACE TREATMENT | ANODIZE OVERALL | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625, TY1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | STYLE DESIGNATOR | RECESSED | HOLE DIAMETER | 0.488 INCHES MINIMUM AND | | 0.498 INCHES MAXIMUM | OUTSIDE DIAMETER | 0.803 INCHES MINIMUM AND | | 0.823 INCHES MAXIMUM | RECESS DIAMETER | 0.538 INCHES MINIMUM AND | | 0.548 INCHES MAXIMUM | MATERIAL THICKNESS | 0.040 INCHES NOMINAL | RECESS ANGLE | 90.0 DEGREES NOMINAL |
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