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National Stock Number: 5310-00-173-8983
Federal Supply Class: 5310
National Item Identification Number: 001738983
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:
4B69011-101A | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
HOLE DIAMETER | 0.550 INCHES NOMINAL | OUTSIDE DIAMETER | 0.785 INCHES MINIMUM AND 0.795 INCHES MAXIMUM | OVERALL HEIGHT | 0.130 INCHES NOMINAL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL THICKNESS | 0.030 INCHES MINIMUM AND 0.040 INCHES MAXIMUM | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | RECESS DEPTH | 0.080 INCHES NOMINAL | STYLE DESIGNATOR | RECESSED |
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