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National Stock Number:
5310-01-270-8858
Federal Supply Class:
5310
National Item Identification Number:
012708858
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:
| 140-007-21-18A3 | 97499 | BELL TEXTRON INC |
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Techincal Specification:
| BOTTOM RECESS ANGLE | 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM | | BOTTOM RECESS DIAMETER | 0.358 INCHES MINIMUM AND 0.378 INCHES MAXIMUM | | HOLE DIAMETER | 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.5525 INCHES MINIMUM AND 0.5725 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM | | MATERIAL | STEEL COMP H11 OVERALL | | MINIMUM TENSILE STRENGTH | 240000 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | 0.020 IN. MIN THK AT ID | | STYLE DESIGNATOR | RECESSED BOTH SIDES | | SURFACE FINISH | 63.0 MICROINCHES BOTTOM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837,TY2,CL2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL | | TOP RECESS ANGLE | 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM | | TOP RECESS DIAMETER | 0.358 INCHES MINIMUM AND 0.378 INCHES MAXIMUM |
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