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National Stock Number:
5310-01-253-3013
Federal Supply Class:
5310
National Item Identification Number:
012533013
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:
| 70219-42422-139 | 78286 | SIKORSKY AIRCRAFT CORPORATION |
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Techincal Specification:
| HOLE DIAMETER | 0.9363 INCHES MINIMUM AND 0.9378 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.056 INCHES MINIMUM AND 0.060 INCHES MAXIMUM | | MATERIAL | STEEL COMP 630 OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 1.375 INCHES NOMINAL | | RECESS ANGLE | 90.0 DEGREES NOMINAL | | RECESS DEPTH | 0.025 INCHES MINIMUM AND 0.035 INCHES MAXIMUM | | RECESS DIAMETER | 0.9388 INCHES MINIMUM AND 0.9663 INCHES MAXIMUM | | SPECIAL FEATURES | CHAMFER BOTTOM OUTSIDE EDGE 22 DEG | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL AND CHROMATE OVERALL |
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