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National Stock Number:
5310-00-373-0078
Federal Supply Class:
5310
National Item Identification Number:
003730078
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:
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Techincal Specification:
| BOTTOM RECESS ANGLE | 90.0 DEGREES NOMINAL | | BOTTOM RECESS DIAMETER | 0.349 INCHES MINIMUM AND 0.361 INCHES MAXIMUM | | HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.314 INCHES MINIMUM AND 0.316 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.630 INCHES MINIMUM AND 0.640 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.140 INCHES MINIMUM AND 0.145 INCHES MAXIMUM | | MATERIAL | STEEL COMP 630 OVERALL | | STYLE DESIGNATOR | RECESSED BOTH SIDES | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | PASSIVATE OVERALL | | TOP RECESS ANGLE | 90.0 DEGREES NOMINAL | | TOP RECESS DIAMETER | 0.349 INCHES MINIMUM AND 0.361 INCHES MAXIMUM |
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