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National Stock Number:
5310-01-344-2491
Federal Supply Class:
5310
National Item Identification Number:
013442491
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:
| 845-6602371 PIECE 54 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| HOLE DIAMETER | 0.780 INCHES NOMINAL | | OUTSIDE DIAMETER | 1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.380 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY 502 OVERALL | | RECESS ANGLE | 45.0 DEGREES NOMINAL | | RECESS DIAMETER | 0.840 INCHES NOMINAL | | STYLE DESIGNATOR | RECESSED |
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