3120-00-775-1852 BEARING,PLAIN,SELF-ALIGNING Index 5310-00-775-1854 WASHER,RECESSED

National Stock Number:
5310-00-775-1853

Federal Supply Class:
5310

National Item Identification Number:
007751853

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:
140-007-42-39C404614TEXTRON SYSTEMS CORPORATION
140-007-42-39C480070LOCKHEED MARTIN CORPORATION
140-007-42-39C497499BELL TEXTRON INC


Techincal Specification:
BOTTOM RECESS ANGLE89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM
BOTTOM RECESS DIAMETER0.726 INCHES MINIMUM AND 0.736 INCHES MAXIMUM
HOLE DIAMETER0.646 INCHES MINIMUM AND 0.666 INCHES MAXIMUM
OUTSIDE DIAMETER1.209 INCHES MINIMUM AND 1.229 INCHES MAXIMUM
MATERIAL THICKNESS0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
MATERIALSTEEL COMP H11 OVERALL
STYLE DESIGNATORRECESSED BOTH SIDES
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-8837,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
TOP RECESS ANGLE89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM
TOP RECESS DIAMETER0.726 INCHES MINIMUM AND 0.736 INCHES MAXIMUM


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