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National Stock Number:
5310-01-185-8056
Federal Supply Class:
5310
National Item Identification Number:
011858056
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:
| L4100053-007 | 43999 | THE BOEING COMPANY |
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Techincal Specification:
| HOLE DIAMETER | 0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.196 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY 718 OVERALL | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | OUTSIDE DIAMETER | 1.220 INCHES MINIMUM AND 1.230 INCHES MAXIMUM | | RECESS ANGLE | 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM | | RECESS DIAMETER | 0.901 INCHES NOMINAL | | STYLE DESIGNATOR | RECESSED | | SPECIAL FEATURES | SPHERICAL RADIUS 0.900 IN. MIN 0.910 IN. MAX BOTTOM OF WASHER | | SURFACE FINISH | 32.0 MICROINCHES BOTTOM | | SURFACE FINISH | 32.0 MICROINCHES TOP |
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