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National Stock Number:
5310-01-137-8994
Federal Supply Class:
5310
National Item Identification Number:
011378994
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:
| BACW10CT8 | 81205 | THE BOEING COMPANY |
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Techincal Specification:
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.253 INCHES MINIMUM AND 0.257 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4135 OVERALL | | RECESS DIAMETER | 0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM | | RECESS ANGLE | 0.080 DEGREES MINIMUM AND 0.100 DEGREES MAXIMUM | | SPECIFICATION/STANDARD DATA | 81205-BACW10CT MANUFACTURERS STANDARD | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ALUMINUM ALLOY OR ANODIZE OVERALL |
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