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National Stock Number: 5310-00-797-1761
Federal Supply Class: 5310
National Item Identification Number: 007971761
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:
66-11343 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
HOLE DIAMETER | 3.290 INCHES MINIMUM AND 3.300 INCHES MAXIMUM | OUTSIDE DIAMETER | 3.750 INCHES NOMINAL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6415 MFR REF 1ST MATERIAL RESPONSE AND AMS 6359 MFR REF 2ND MATERIAL RESPONSE AND MIL- S-5000 MIL SPEC 3RD MATERIAL RESPONSE OVERALL | MATERIAL THICKNESS | 0.540 INCHES NOMINAL | MATERIAL | STEEL COMP 4340 OVERALL | MINIMUM TENSILE STRENGTH | 125000 POUNDS PER SQUARE INCH | RECESS DIAMETER | 3.450 INCHES NOMINAL | RECESS ANGLE | 45.0 DEGREES NOMINAL | STYLE DESIGNATOR | RECESSED |
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