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National Stock Number:
5310-00-052-1289
Federal Supply Class:
5310
National Item Identification Number:
000521289
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:
| 2678146 | 34087 | KITCO LLC | | 2678146 | 56540 | ASSOCIATED AIRCRAFT MANUFACTURING & SALES, INC. | | 2678146 | 88277 | THE BOEING COMPANY | | 2678146 | 8X044 | DERCO AEROSPACE, INC. |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 3003 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.529 INCHES MINIMUM AND | | 0.540 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.000 INCHES NOMINAL | | RECESS DIAMETER | 0.602 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.090 INCHES NOMINAL | | RECESS ANGLE | 100.0 DEGREES NOMINAL | | HEAT TREATMENT | O-ANNEALED, RECRYSTALLIZED | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 88277 | | DESIGN CONTROL REFERENCE | 2678146 |
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