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National Stock Number:
5310-01-093-2480
Federal Supply Class:
5310
National Item Identification Number:
010932480
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:
| 5310PL1939752 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH | | 70361-05010-102 | 78286 | SIKORSKY AIRCRAFT CORPORATION | | 70361-05010-103 | 55214 | BETA SHIM CO. | | 70361-05010-103 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| HARDNESS RATING | 56.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.389 INCHES MINIMUM AND 0.394 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.080 INCHES MINIMUM AND 0.083 INCHES MAXIMUM | | MATERIAL | STEEL CORROSION RESISTING OVERALL | | OUTSIDE DIAMETER | 1.000 INCHES NOMINAL | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | RECESS DIAMETER | 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SS8435 MFR REF SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL |
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