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National Stock Number:
5310-01-285-7731
Federal Supply Class:
5310
National Item Identification Number:
012857731
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:
| LM-821-94 | 76005 | LORD CORPORATION |
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Techincal Specification:
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.635 INCHES NOMINAL | | MATERIAL | STEEL COMP 4340 OR STEEL COMP 4140 OVERALL | | III PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT | | PROPRIETARY CHARACTERISTICS | PACS | | OUTSIDE DIAMETER | 0.850 INCHES NOMINAL | | OVERALL HEIGHT | 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM | | RADIUS | 0.0100 INCHES MAXIMUM | | RECESS DIAMETER | 0.765 INCHES NOMINAL | | STYLE DESIGNATOR | RECESSED |
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