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National Stock Number:
5310-00-453-9801
Federal Supply Class:
5310
National Item Identification Number:
004539801
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:
| 2146729 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| HOLE DIAMETER | 0.283 INCHES MINIMUM AND 0.285 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.427 INCHES MINIMUM AND 0.447 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | RECESS ANGLE | 50.0 DEGREES MINIMUM AND 70.0 DEGREES MAXIMUM | | RECESS DEPTH | 0.031 INCHES NOMINAL | | RECESS DIAMETER | 0.320 INCHES NOMINAL | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT | PHOSPHATE OVERALL |
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