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National Stock Number:
5310-00-997-7211
Federal Supply Class:
5310
National Item Identification Number:
009977211
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:
| 3G11819-101 | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| MATERIAL | COPPER ALLOY 842 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.800 INCHES MINIMUM AND | | 0.805 INCHES MAXIMUM | | OUTSIDE DIAMETER | 1.250 INCHES NOMINAL | | RECESS DIAMETER | 0.830 INCHES MINIMUM AND | | 0.835 INCHES MAXIMUM | | MATERIAL THICKNESS | 0.063 INCHES NOMINAL | | RECESS ANGLE | 90.0 DEGREES MINIMUM AND | | 100.0 DEGREES MAXIMUM | | HEAT TREATMENT | HOT ROLLED OR | | COLD DRAWN 1/2 HARD CONDITION | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 98897 | | DESIGN CONTROL REFERENCE | 3G11819-101 |
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