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National Stock Number:
5310-00-486-4677
Federal Supply Class:
5310
National Item Identification Number:
004864677
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:
| LS10095-4CV | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM | | HOLE DIAMETER | 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.454 INCHES MINIMUM AND 0.464 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6358 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A193 ASSN STD 3RD MATERIAL RESPONSE OVERALL | | MATERIAL THICKNESS | 0.075 INCHES MINIMUM AND 0.095 INCHES MAXIMUM | | MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH | | SPECIAL FEATURES | 0.290 IN. MIN,0.310 IN. MAX SPHERICAL RADIUS ONE SIDE OF BEARING SURFACE | | RECESS ANGLE | 88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM | | RECESS DIAMETER | 0.332 INCHES MINIMUM AND 0.342 INCHES MAXIMUM | | STYLE DESIGNATOR | RECESSED | | SURFACE FINISH | 32.0 MICROINCHES TOP | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
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