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National Stock Number:
5310-00-245-8268
Federal Supply Class:
5310
National Item Identification Number:
002458268
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:
| 10188717 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 457-5571 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 5310002458268 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 5310002458268 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE |
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Techincal Specification:
| BOTTOM RECESS ANGLE | 43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM | | BOTTOM RECESS DIAMETER | 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM | | HOLE DIAMETER | 0.256 INCHES MINIMUM AND 0.263 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-766,CLASS 301,CONDITION FULL HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.090 INCHES NOMINAL | | MATERIAL | STEEL COMP 301 OVERALL | | OUTSIDE DIAMETER | 0.650 INCHES MINIMUM AND 0.670 INCHES MAXIMUM | | RECESS DIAMETER | 0.310 INCHES NOMINAL | | STYLE DESIGNATOR | RECESSED BOTH SIDES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-14538 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CHROMIUM OVERALL | | TOP RECESS ANGLE | 43.0 DEGREES MINIMUM AND 47.0 DEGREES MAXIMUM | | TOP RECESS DIAMETER | 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM |
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