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National Stock Number:
5310-01-121-8525
Federal Supply Class:
5310
National Item Identification Number:
011218525
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:
| 74A411520-2001 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 7075 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/9,TEMPER T7351 FED SPEC SINGLE MATERIAL RESPONSE OR | | QQ-A-367,TEMPER T7352 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 3.492 INCHES MINIMUM AND | | 3.494 INCHES MAXIMUM | | OUTSIDE DIAMETER | 3.865 INCHES NOMINAL | | OVERALL HEIGHT | 0.820 INCHES NOMINAL | | MATERIAL THICKNESS | 0.186 INCHES NOMINAL | | SPECIAL FEATURES | ID COUNTERSINK ANGLE 30 DEGREES | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 76301 | | DESIGN CONTROL REFERENCE | 74A411520-2001 |
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