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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:
| MATERIAL | STEEL COMP H11 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OR | | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND | | CHROMATE OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-8837,TY2,CL2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | STYLE DESIGNATOR | RECESSED BOTH SIDES | | HOLE DIAMETER | 0.318 INCHES MINIMUM AND | | 0.338 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.5525 INCHES MINIMUM AND | | 0.5725 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.089 INCHES MINIMUM AND | | 0.099 INCHES MAXIMUM | | TOP RECESS DIAMETER | 0.358 INCHES MINIMUM AND | | 0.378 INCHES MAXIMUM | | BOTTOM RECESS DIAMETER | 0.358 INCHES MINIMUM AND | | 0.378 INCHES MAXIMUM | | BOTTOM RECESS ANGLE | 89.0 DEGREES MINIMUM AND | | 91.0 DEGREES MAXIMUM | | TOP RECESS ANGLE | 89.0 DEGREES MINIMUM AND | | 91.0 DEGREES MAXIMUM | | SURFACE FINISH | 63.0 MICROINCHES TOP | | 63.0 MICROINCHES BOTTOM | | SPECIAL FEATURES | 0.020 IN. MIN THK AT ID | | MINIMUM TENSILE STRENGTH | 240000 POUNDS PER SQUARE INCH |
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