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National Stock Number:
5310-00-165-8393
Federal Supply Class:
5310
National Item Identification Number:
001658393
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:
| 10087985 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | MS9768-11 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR | | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 29.0 ROCKWELL C MINIMUM AND | | 39.0 ROCKWELL C MAXIMUM | | STYLE DESIGNATOR | RECESSED BOTH SIDES | | HOLE DIAMETER | 0.315 INCHES MINIMUM AND | | 0.324 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.740 INCHES MINIMUM AND | | 0.760 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.095 INCHES MINIMUM AND | | 0.105 INCHES MAXIMUM | | TOP RECESS DIAMETER | 0.372 INCHES NOMINAL | | BOTTOM RECESS DIAMETER | 0.372 INCHES NOMINAL | | BOTTOM RECESS ANGLE | 90.0 DEGREES NOMINAL | | TOP RECESS ANGLE | 90.0 DEGREES NOMINAL | | SURFACE FINISH | 63.0 MICROINCHES TOP | | 63.0 MICROINCHES BOTTOM | | HEAT TREATMENT | QUENCHED AND | | TEMPERED | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 96906 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS9768-11 |
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