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National Stock Number:
5310-00-596-4644
Federal Supply Class:
5310
National Item Identification Number:
005964644
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:
| S12-35-6016 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| MATERIAL | STEEL COMP 4130 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 2.572 INCHES NOMINAL | | OUTSIDE DIAMETER | 3.8082 INCHES MINIMUM AND | | 3.8097 INCHES MAXIMUM | | RECESS DIAMETER | 2.938 INCHES NOMINAL | | MATERIAL THICKNESS | 0.083 INCHES MINIMUM AND | | 0.085 INCHES MAXIMUM | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 78286 | | DESIGN CONTROL REFERENCE | S12-35-6016 |
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