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National Stock Number:
5310-00-298-8797
Federal Supply Class:
5310
National Item Identification Number:
002988797
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:
| 7219440 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 544 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.078 INCHES MINIMUM AND | | 0.109 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.234 INCHES MINIMUM AND | | 0.266 INCHES MAXIMUM | | RECESS DIAMETER | 0.121 INCHES NOMINAL | | MATERIAL THICKNESS | 0.016 INCHES MINIMUM AND | | 0.047 INCHES MAXIMUM | | RECESS ANGLE | 82.0 DEGREES NOMINAL |
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