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National Stock Number:
5310-00-513-9955
Federal Supply Class:
5310
National Item Identification Number:
005139955
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:
| B31-15-1095 | 81361 | EDGEWOOD CHEMICAL BIOLOGICAL CENTER ECBC |
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Techincal Specification:
| BOTTOM RECESS ANGLE | 82.0 DEGREES NOMINAL | | BOTTOM RECESS DIAMETER | 0.343 INCHES NOMINAL | | HEAT TREATMENT | ANNEALED | | HOLE DIAMETER | 0.315 INCHES MINIMUM AND 0.321 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.750 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 ASSN STD ALL MATERIAL RESPONSES OVERALL | | MATERIAL THICKNESS | 0.125 INCHES NOMINAL | | MATERIAL | STEEL COMP 303 OR STEEL COMP 416 OVERALL | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY PACKAGING | | SPECIAL FEATURES | UNIT PACKAGE QUANTITY 2,UNIT PACKAGE TYPE,BAG | | STYLE DESIGNATOR | RECESSED BOTH SIDES | | TOP RECESS ANGLE | 82.0 DEGREES NOMINAL | | TOP RECESS DIAMETER | 0.343 INCHES NOMINAL |
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