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National Stock Number:
5310-00-080-7371
Federal Supply Class:
5310
National Item Identification Number:
000807371
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:
| C4WM1844-1 | 71867 | DE HAVILLAND AIRCRAFT OF CANADA LIMITED |
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Techincal Specification:
| HOLE DIAMETER | 0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM | | MATERIAL | STEEL COMP 4130 OVERALL | | RECESS ANGLE | 89.5 DEGREES MINIMUM AND 90.5 DEGREES MAXIMUM | | RECESS DIAMETER | 0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM | | SPECIAL FEATURES | 0.050 IN. MIN 0.070 IN. MAX RADIUS ON OUTSIDE EDGE | | STYLE DESIGNATOR | RECESSED |
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