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National Stock Number:
5310-00-935-8989
Federal Supply Class:
5310
National Item Identification Number:
009358989
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:
| MS9482-12 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MS9482-12 | 97499 | BELL TEXTRON INC |
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Techincal Specification:
| BOTTOM RECESS ANGLE | 90.0 DEGREES NOMINAL | | BOTTOM RECESS DIAMETER | 0.489 INCHES MINIMUM AND 0.499 INCHES MAXIMUM | | HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.380 INCHES MINIMUM AND 0.395 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.835 INCHES MINIMUM AND 0.855 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6437 ASSN STD SINGLE MATERIAL RESPONSE OR MS 6485 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM | | MATERIAL | STEEL COMP H11 OVERALL | | STYLE DESIGNATOR | RECESSED BOTH SIDES | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | NICKEL AND CADMIUM OVERALL | | TOP RECESS ANGLE | 90.0 DEGREES NOMINAL | | TOP RECESS DIAMETER | 0.489 INCHES MINIMUM AND 0.499 INCHES MAXIMUM |
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