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National Stock Number:
5310-00-209-1686
Federal Supply Class:
5310
National Item Identification Number:
002091686
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:
| 7R4-18D | 43999 | THE BOEING COMPANY |
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Techincal Specification:
| HOLE DIAMETER | 1.087 INCHES MINIMUM AND 1.090 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.428 INCHES MINIMUM AND 1.431 INCHES MAXIMUM | | OVERALL HEIGHT | 0.155 INCHES MINIMUM AND 0.160 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/4 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.064 INCHES MINIMUM AND 0.084 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY OVERALL | | RECESS DEPTH | 0.104 INCHES MINIMUM AND 0.109 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED | | SURFACE FINISH | 100.0 MICROINCHES ALL SURFACES | | SURFACE TREATMENT | ANODIZE OVERALL |
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