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National Stock Number: 5310-00-576-7340
Federal Supply Class: 5310
National Item Identification Number: 005767340
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:
5310CH34-031-5 | 81996 | U S ARMY AVIATION AND MISSILE COMMAND | S1610-21016-1 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
MATERIAL | STEEL COMP 4130 OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-T-6736,TY 1,COND HT-150 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | SURFACE TREATMENT | CADMIUM OVERALL | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | STYLE DESIGNATOR | RECESSED | HOLE DIAMETER | 0.4385 INCHES MINIMUM AND | | 0.4425 INCHES MAXIMUM | OUTSIDE DIAMETER | 0.687 INCHES NOMINAL | RECESS DIAMETER | 0.500 INCHES NOMINAL | MATERIAL THICKNESS | 0.077 INCHES MINIMUM AND | | 0.079 INCHES MAXIMUM | RECESS ANGLE | 90.0 DEGREES NOMINAL | HEAT TREATMENT | AS FABRICATED | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH | THE MANUFACTURERS DATA | | MANUFACTURERS CODE | 81996 | DESIGN CONTROL REFERENCE | 5310CH34-031-5 |
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