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National Stock Number:
5310-00-558-9926
Federal Supply Class:
5310
National Item Identification Number:
005589926
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:
| S1448906-4 | 18355 | THE BOEING COMPANY | | S1448906-4 | 88277 | THE BOEING COMPANY |
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Techincal Specification:
| MATERIAL THICKNESS | 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY 2024 OVERALL | | RECESS ANGLE | 119.5 DEGREES MINIMUM AND 120.5 DEGREES MAXIMUM | | RECESS DIAMETER | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/5,ALCLAD FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | OUTSIDE DIAMETER | 0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM | | HOLE DIAMETER | 0.170 INCHES MINIMUM AND 0.178 INCHES MAXIMUM |
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