5310-01-072-2900 WASHER,FLAT Index 5331-01-072-2905 O-RING

National Stock Number:
5310-01-072-2903

Federal Supply Class:
5310

National Item Identification Number:
010722903

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:
140-007-16-16A397499BELL TEXTRON INC


Techincal Specification:
MATERIALSTEEL COMP H11 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OR
AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-8837 CL 2 TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORRECESSED BOTH SIDES
HOLE DIAMETER0.249 INCHES MINIMUM AND
0.255 INCHES MAXIMUM
OUTSIDE DIAMETER0.490 INCHES MINIMUM AND
0.510 INCHES MAXIMUM
MATERIAL THICKNESS0.089 INCHES MINIMUM AND
0.099 INCHES MAXIMUM
TOP RECESS DIAMETER0.310 INCHES MINIMUM AND
0.350 INCHES MAXIMUM
BOTTOM RECESS DIAMETER0.310 INCHES MINIMUM AND
0.350 INCHES MAXIMUM
BOTTOM RECESS ANGLE89.5 DEGREES MINIMUM AND
90.5 DEGREES MAXIMUM
TOP RECESS ANGLE89.5 DEGREES MINIMUM AND
90.5 DEGREES MAXIMUM
SURFACE FINISH63.0 MICROINCHES TOP
63.0 MICROINCHES BOTTOM
SPECIFICATION/STANDARD DATA97499-140-007 MANUFACTURERS STANDARD
MINIMUM TENSILE STRENGTH240000 POUNDS PER SQUARE INCH


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