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National Stock Number:
5310-01-623-8518
Federal Supply Class:
5310
National Item Identification Number:
016238518
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:
| 10085804 | 05606 | GENERAL DYNAMICS-OTS, INC. |
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Techincal Specification:
| FEATURES PROVIDED | CASEHARDENED | | HARDNESS RATING | 550.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 650.0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM | | HOLE DIAMETER | 12.0 MILLIMETERS NOMINAL | | MATERIAL THICKNESS | 4.2 MILLIMETERS NOMINAL | | MATERIAL | STEEL OVERALL | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SEAT, CONICAL | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 21.0 MILLIMETERS NOMINAL | | RECESS ANGLE | 120.0 DEGREES NOMINAL | | RECESS DIAMETER | 18.5 MILLIMETERS NOMINAL | | STYLE DESIGNATOR | RECESSED | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM F1941M, TYPE 8DT,ELECTRODEPOSITED ZINC, HEXAVALENT CHROMIUM FREE ASSN STD SINGLE TREATMENT RESPONSE OR ASTM B633, SC 2,TYPE VI, ELECTRODEPOSITED ZINC, HEXAVALENT CHROMIUM FREE ASSN STD SINGLE TREATMENT RESPONSE OR ASTM F1137, GRADE 111, ZINC PHOSPHATE WITH ZINC RICH EPOXY RESIN, OLIVE DRAB COLOR ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL |
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