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National Stock Number:
5310-00-125-5364
Federal Supply Class:
5310
National Item Identification Number:
001255364
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:
| 56590 | 93835 | PARKER-HANNIFIN CORP |
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Techincal Specification:
| HARDNESS RATING | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.266 INCHES NOMINAL | | OUTSIDE DIAMETER | 0.4375 INCHES MINIMUM AND 0.4377 INCHES MAXIMUM | | OVERALL HEIGHT | 0.0445 INCHES MINIMUM AND 0.0455 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.455 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | RECESS DEPTH | 0.030 INCHES NOMINAL | | RECESS DIAMETER | 0.326 INCHES NOMINAL | | SPECIAL FEATURES | BOTH BEARING SURFACES CHAMFERED ON OD 0.010 IN. TO 0.015 IN. BY 45 DEG | | STYLE DESIGNATOR | RECESSED | | SURFACE FINISH | 32.0 MICROINCHES BOTTOM | | SURFACE FINISH | 32.0 MICROINCHES TOP |
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