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National Stock Number: 5310-01-223-7139
Federal Supply Class: 5310
National Item Identification Number: 012237139
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:
| 140-007-20-19-2 | 10630 | ANILLO INDUSTRIES LLC | | 140-007-20-19-2 | 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 | 0.352 INCHES MINIMUM AND 0.379 INCHES MAXIMUM | | DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BY HEAT TREAT PER MIL-H-6875 | | HOLE DIAMETER | 0.312 INCHES MINIMUM AND 0.319 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.062 INCHES MINIMUM AND 0.071 INCHES MAXIMUM | | MINIMUM TENSILE STRENGTH | 240000 POUNDS PER SQUARE INCH | | OUTSIDE DIAMETER | 0.584 INCHES MINIMUM AND 0.604 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED BOTH SIDES | | SPECIAL FEATURES | SURFACES ARE VACUUM PLATED | | TOP RECESS ANGLE | 89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM | | TOP RECESS DIAMETER | 0.352 INCHES MINIMUM AND 0.379 INCHES MAXIMUM |
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