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National Stock Number:
5310-00-209-1691
Federal Supply Class:
5310
National Item Identification Number:
002091691
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:
| 7R4-16D | 28548 | FABRICATION SPECIALTY INC | | 7R4-16D | 43999 | THE BOEING COMPANY |
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Techincal Specification:
| HOLE DIAMETER | 0.962 INCHES MINIMUM AND 0.965 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.237 INCHES MINIMUM AND 1.240 INCHES MAXIMUM | | OVERALL HEIGHT | 0.155 INCHES MINIMUM AND 0.160 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/4 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-225/5 FED SPEC 3RD MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.078 INCHES NOMINAL | | MATERIAL | ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2017 OVERALL | | RECESS DEPTH | 0.104 INCHES MINIMUM AND 0.109 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED | | SURFACE FINISH | 100.0 MICROINCHES ALL SURFACES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-A-696 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ANODIZE OVERALL |
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