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National Stock Number:
5310-01-255-4625
Federal Supply Class:
5310
National Item Identification Number:
012554625
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:
| K650052-11 | 84955 | KAMAN AEROSPACE CORPORATION |
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Techincal Specification:
| MATERIAL | STEEL COMP 4130 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | HARDNESS RATING | 92.0 ROCKWELL B NOMINAL AND | | 26.0 ROCKWELL C NOMINAL | | STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 0.437 INCHES MINIMUM AND | | 0.439 INCHES MAXIMUM | | OUTSIDE DIAMETER | 0.640 INCHES NOMINAL | | RECESS DIAMETER | 0.550 INCHES NOMINAL | | MATERIAL THICKNESS | 0.080 INCHES NOMINAL | | RECESS ANGLE | 90.0 DEGREES NOMINAL |
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