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National Stock Number:
5310-00-470-2940
Federal Supply Class:
5310
National Item Identification Number:
004702940
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:
| MS9482-11 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| BOTTOM RECESS ANGLE | 100.0 DEGREES NOMINAL | | BOTTOM RECESS DIAMETER | 0.404 INCHES NOMINAL | | HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM | | HEAT TREATMENT | QUENCHED AND TEMPERED | | HOLE DIAMETER | 0.317 INCHES MINIMUM AND 0.332 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.680 INCHES MINIMUM AND 0.700 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6437 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.150 INCHES MINIMUM AND 0.160 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 OR CADMIUM OVERALL | | TOP RECESS ANGLE | 80.0 DEGREES NOMINAL | | TOP RECESS DIAMETER | 0.394 INCHES NOMINAL |
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