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National Stock Number:
5310-01-326-4937
Federal Supply Class:
5310
National Item Identification Number:
013264937
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:
| SS4409-088 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| HOLE DIAMETER | 0.265 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/13 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.090 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 7075 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 0.680 INCHES NOMINAL | | STYLE DESIGNATOR | RECESSED |
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