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National Stock Number:
5310-00-238-1106
Federal Supply Class:
5310
National Item Identification Number:
002381106
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:
| 4P53523-109A | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| MATERIAL | STEEL COMP 4340 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ADS30000 FINISH C FSCM 98897 MIL SPEC 5TH TREATMENT RESPONSE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 1.015 INCHES MINIMUM AND | | 1.028 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.940 INCHES NOMINAL | | OVERALL HEIGHT | 0.890 INCHES NOMINAL | | RECESS DEPTH | 0.390 INCHES NOMINAL | | MATERIAL THICKNESS | 0.195 INCHES NOMINAL | | HEAT TREATMENT | AS FABRICATED | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 98897 | | DESIGN CONTROL REFERENCE | 4P53523-109A |
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