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National Stock Number:
5310-01-250-6306
Federal Supply Class:
5310
National Item Identification Number:
012506306
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:
| 10110217 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 37288-1 | 09344 | ROCKWELL COLLINS, INC. DBA RC DISPLAYS SYSTEMS | | 37288-1 | 3M337 | WESS-DEL INCORPORATED |
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Techincal Specification:
| HARDNESS RATING | 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.385 INCHES MINIMUM AND 0.392 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.750 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM | | MATERIAL | STEEL COMP 440C OVERALL | | RECESS ANGLE | 100.0 DEGREES NOMINAL | | RECESS DIAMETER | 0.450 INCHES NOMINAL | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35,TYPE 5 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL |
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