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National Stock Number:
5310-01-289-5867
Federal Supply Class:
5310
National Item Identification Number:
012895867
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:
| 10110286 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | ST4M150C3001 | 76301 | THE BOEING COMPANY | | ST4N150C3001 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| HOLE DIAMETER | 0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-P-763 FED SPEC ALL MATERIAL RESPONSES OVERALL | | MATERIAL THICKNESS | 0.074 INCHES MINIMUM AND 0.082 INCHES MAXIMUM | | MATERIAL | STEEL COMP 321 AND STEEL COMP 347 OVERALL | | RECESS ANGLE | 40.0 DEGREES NOMINAL | | RECESS DIAMETER | 0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY2 CL2 FED SPEC 1ST TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
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