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National Stock Number:
5310-00-487-6455
Federal Supply Class:
5310
National Item Identification Number:
004876455
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:
| 12P12163-7 | 81755 | LOCKHEED MARTIN CORPORATION |
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Techincal Specification:
| HOLE DIAMETER | 0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.870 INCHES NOMINAL | | MATERIAL THICKNESS | 0.100 INCHES NOMINAL | | SPECIAL FEATURES | ALL SHARP EDGES BROKEN 0.015 IN. RADIUS OR CHAMFERED 45 DEG BY 0.015 IN. | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | RECESS DIAMETER | 0.483 INCHES MINIMUM AND 0.495 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED |
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