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National Stock Number:
5310-01-233-1414
Federal Supply Class:
5310
National Item Identification Number:
012331414
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:
| MS9768-08 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL | IRON ALLOY 660 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5525 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 | 0.166 INCHES MINIMUM AND | | 0.172 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.365 INCHES MINIMUM AND | | 0.385 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.066 INCHES MINIMUM AND | | 0.076 INCHES MAXIMUM | | TOP RECESS DIAMETER | 0.202 INCHES MINIMUM AND | | 0.232 INCHES MAXIMUM | | BOTTOM RECESS DIAMETER | 0.202 INCHES MINIMUM AND | | 0.232 INCHES MAXIMUM | | BOTTOM RECESS ANGLE | 86.0 DEGREES MINIMUM AND | | 94.0 DEGREES MAXIMUM | | TOP RECESS ANGLE | 86.0 DEGREES MINIMUM AND | | 94.0 DEGREES MAXIMUM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | 63.0 MICROINCHES BOTTOM | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 96906 | | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS9768-08 |
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