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National Stock Number:
5310-01-043-9276
Federal Supply Class:
5310
National Item Identification Number:
010439276
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:
| 16M228-7 | 81755 | LOCKHEED MARTIN CORPORATION | | 5310PL0787253 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH |
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Techincal Specification:
| MATERIAL | STEEL OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | RECESSED BOTH SIDES | | HOLE DIAMETER | 0.453 INCHES MINIMUM AND | | 0.458 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.000 INCHES NOMINAL | | MATERIAL THICKNESS | 0.190 INCHES NOMINAL | | TOP RECESS DIAMETER | 0.560 INCHES MINIMUM AND | | 0.570 INCHES MAXIMUM | | BOTTOM RECESS DIAMETER | 0.560 INCHES MINIMUM AND | | 0.570 INCHES MAXIMUM | | BOTTOM RECESS ANGLE | 90.0 DEGREES NOMINAL | | TOP RECESS ANGLE | 90.0 DEGREES NOMINAL | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 81755 | | DESIGN CONTROL REFERENCE | 16M228-7 |
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