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National Stock Number:
5310-00-874-4678
Federal Supply Class:
5310
National Item Identification Number:
008744678
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:
| 538758 | 73030 | HAMILTON SUNDSTRAND CORPORATION |
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Techincal Specification:
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.760 INCHES MINIMUM AND 0.764 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.000 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5610 ASSN STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL THICKNESS | 0.105 INCHES MINIMUM AND 0.110 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | RECESS ANGLE | 120.0 DEGREES NOMINAL | | RECESS DIAMETER | 0.900 INCHES NOMINAL | | SPECIAL FEATURES | FIVE EQUALLY SPACED SLOTS 0.180 IN. W BY 0.070 IN. DEEP ON FLAT SIDE,ONE HOLE 0.0327 IN. NOM DIA DRILLED THRU ON VERTICAL CENTERLINE 0.4162 IN.FROM HORIZONTAL CENTERLINE AND FITTED WITH 0.0333 IN. DIA STEEL PIN 0.115 IN. LG,P/N 538758-2 | | STYLE DESIGNATOR | RECESSED |
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