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National Stock Number:
5310-00-678-2983
Federal Supply Class:
5310
National Item Identification Number:
006782983
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:
| 8754391 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Techincal Specification:
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM | | HEAT TREATMENT | QUENCHED AND TEMPERED | | HOLE DIAMETER | 1.003 INCHES MINIMUM AND 1.009 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.550 INCHES MINIMUM AND 1.570 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-700 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1040 OVERALL | | RECESS DIAMETER | 1.170 INCHES MINIMUM AND 1.190 INCHES MAXIMUM | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | SPECIAL FEATURES | ONE BEARING SURFACE HAS A 45 DEGREE BEVEL | | STYLE DESIGNATOR | RECESSED |
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