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National Stock Number: 5310-00-775-1249
Federal Supply Class: 5310
National Item Identification Number: 007751249
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:
370340 | 77445 | RTX CORPORATION |
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Techincal Specification:
HOLE DIAMETER | 3.151 INCHES MINIMUM AND 3.154 INCHES MAXIMUM | OUTSIDE DIAMETER | 3.540 INCHES MINIMUM AND 3.560 INCHES MAXIMUM | OVERALL HEIGHT | 0.168 INCHES MINIMUM AND 0.170 INCHES MAXIMUM | MATERIAL THICKNESS | 0.052 INCHES NOMINAL | MATERIAL | STEEL OVERALL | RECESS DEPTH | 0.096 INCHES MINIMUM AND 0.104 INCHES MAXIMUM | STYLE DESIGNATOR | RECESSED |
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