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National Stock Number:
5310-00-499-3419
Federal Supply Class:
5310
National Item Identification Number:
004993419
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:
| 2637507PC2 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | | 2637507PC2 | 29372 | HOWMET GLOBAL FASTENING SYSTEMS INC. | | 2637507PC2 | 92215 | HOWMET GLOBAL FASTENING SYSTEMS INC |
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Techincal Specification:
| BOTTOM RECESS ANGLE | 45.0 DEGREES NOMINAL | | BOTTOM RECESS DIAMETER | 0.295 INCHES MINIMUM AND 0.300 INCHES MAXIMUM | | HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM | | HEAT TREATMENT | ANNEALED | | HOLE DIAMETER | 0.255 INCHES MINIMUM AND 0.260 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM | | MATERIAL | STEEL COMP 630 OVERALL | | STYLE DESIGNATOR | RECESSED BOTH SIDES | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | TOP RECESS ANGLE | 45.0 DEGREES NOMINAL | | TOP RECESS DIAMETER | 0.295 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
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