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National Stock Number:
5310-00-576-1072
Federal Supply Class:
5310
National Item Identification Number:
005761072
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:
| 17-30920-1 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2 |
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Techincal Specification:
| HEAT TREATMENT | HOT ROLLED OR COLD DRAWN 1/2 HARD CONDITION | | HOLE DIAMETER | 1.766 INCHES MINIMUM AND 1.796 INCHES MAXIMUM | | OUTSIDE DIAMETER | 3.938 INCHES MINIMUM AND 4.062 INCHES MAXIMUM | | OVERALL HEIGHT | 0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY OVERALL | | MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | RECESS DEPTH | 0.062 INCHES NOMINAL | | RECESS DIAMETER | 1.906 INCHES NOMINAL | | SPECIAL FEATURES | 0.125 IN. BY 45 DEG CHAMFER LOCATED AT PERIPHERAL OF RECESSED SURFACE | | STYLE DESIGNATOR | RECESSED |
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