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National Stock Number:
5310-01-111-5957
Federal Supply Class:
5310
National Item Identification Number:
011115957
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:
| 6-55097-16 | 17765 | THE BOEING COMPANY | | 6-55097-16 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | STEEL COMP 4140 OR | | STEEL COMP 8740 OR | | STEEL COMP E4340 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626,COND D MIL SPEC 1ST MATERIAL RESPONSE OR | | MIL-S-6049,COND D MIL SPEC 2ND MATERIAL RESPONSE OR | | MIL-S-5000,COND D MIL SPEC 3RD MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.875 INCHES MINIMUM AND | | 0.882 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.600 INCHES MINIMUM AND | | 1.620 INCHES MAXIMUM | | RECESS DIAMETER | 1.080 INCHES MINIMUM AND | | 1.086 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.280 INCHES MINIMUM AND | | 0.320 INCHES MAXIMUM | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | SURFACE FINISH | 63.0 MICROINCHES COUNTERBORE WALL | | 63.0 MICROINCHES INNER | | SPECIAL FEATURES | 0.075 IN. MIN 0.080 IN. MAX RADIUS OPPOSITE SIDE RECESSED ANGLE AND CHAMFER 0.030 IN. MIN 0.040 IN. MAX BY 45 DEG BOTTOM OUTSIDE CORNER | | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH |
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