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National Stock Number: 5310-01-009-9796
Federal Supply Class: 5310
National Item Identification Number: 010099796
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:
12S722-7 | 81755 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
MATERIAL | ALUMINUM ALLOY 7075 OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/9,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | STYLE DESIGNATOR | RECESSED | HOLE DIAMETER | 0.257 INCHES MINIMUM AND | | 0.272 INCHES MAXIMUM | OUTSIDE DIAMETER | 0.710 INCHES MINIMUM AND | | 0.730 INCHES MAXIMUM | OVERALL HEIGHT | 0.150 INCHES MINIMUM AND | | 0.170 INCHES MAXIMUM | MATERIAL THICKNESS | 0.150 INCHES MINIMUM AND | | 0.170 INCHES MAXIMUM | RECESS ANGLE | 100.0 DEGREES NOMINAL | HEAT TREATMENT | T-6 SOLUTION HEAT TREATED, ARTIFICALLY AGED | THE MANUFACTURERS DATA | | MANUFACTURERS CODE | 81755 | DESIGN CONTROL REFERENCE | 12S722-7 |
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