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National Stock Number: 5310-01-158-2059
Federal Supply Class: 5310
National Item Identification Number: 011582059
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:
300-4684422 ITEM 7 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
MATERIAL | COPPER ALLOY 630 OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-465 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | STYLE DESIGNATOR | RECESSED BOTH SIDES | HOLE DIAMETER | 1.760 INCHES NOMINAL | OUTSIDE DIAMETER | 3.000 INCHES NOMINAL | MATERIAL THICKNESS | 0.260 INCHES NOMINAL | TOP RECESS DIAMETER | 1.880 INCHES NOMINAL | BOTTOM RECESS DIAMETER | 1.880 INCHES NOMINAL | BOTTOM RECESS ANGLE | 90.0 DEGREES NOMINAL | TOP RECESS ANGLE | 90.0 DEGREES NOMINAL | SURFACE FINISH | 63.0 MICROINCHES TOP | | 63.0 MICROINCHES BOTTOM | | 63.0 MICROINCHES INNER |
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