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National Stock Number:
5310-00-997-1989
Federal Supply Class:
5310
National Item Identification Number:
009971989
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:
| 63C52625-21 | 98750 | SAN ANTONIO AIR LOGISTICS CENTER | | 63C52625PC-21 | 80049 | DEPARTMENT OF THE AIR FORCE |
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Techincal Specification:
| HOLE DIAMETER | 1.703 INCHES MINIMUM AND 1.734 INCHES MAXIMUM | | OUTSIDE DIAMETER | 2.734 INCHES MINIMUM AND 2.766 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.015 INCHES MINIMUM AND 0.031 INCHES MAXIMUM | | MATERIAL | COPPER ALLOY 360 OVERALL | | STYLE DESIGNATOR | RECESSED |
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