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National Stock Number:
5310-00-329-1985
Federal Supply Class:
5310
National Item Identification Number:
003291985
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:
| 68A411054-2003 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| HOLE DIAMETER | 0.386 INCHES MINIMUM AND 0.393 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.000 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T851 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | MATERIAL THICKNESS | 0.220 INCHES NOMINAL | | RECESS ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM | | RECESS DEPTH | 0.179 INCHES MINIMUM AND 0.183 INCHES MAXIMUM | | RECESS DIAMETER | 0.752 INCHES NOMINAL | | SPECIAL FEATURES | CHAMFER TOP OUTSIDE EDGE 0.06 IN. BY 40 DEG MIN 50 DEG MAX | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | PS13201,TY 2,CL 1 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL |
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