5310-01-085-3248 WASHER,FLAT Index 5310-01-085-3250 WASHER,SPRING TENSION

National Stock Number:
5310-01-085-3249

Federal Supply Class:
5310

National Item Identification Number:
010853249

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.


Manufacturer Information:
140-007-24-22D597499BELL TEXTRON INC


Techincal Specification:
BOTTOM RECESS ANGLE45.0 DEGREES MINIMUM
BOTTOM RECESS DIAMETER0.415 INCHES NOMINAL
HOLE DIAMETER0.375 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6485 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.156 INCHES NOMINAL
MATERIALSTEEL COMP H11 OVERALL
MINIMUM TENSILE STRENGTH240000 POUNDS PER SQUARE INCH
OUTSIDE DIAMETER0.688 INCHES NOMINAL
STYLE DESIGNATORRECESSED BOTH SIDES
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-8837 TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
TOP RECESS ANGLE45.0 DEGREES MINIMUM
TOP RECESS DIAMETER0.415 INCHES NOMINAL


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