5310-00-821-0562 WASHER,RECESSED Index 3020-00-821-0566 GEAR,HELICAL

National Stock Number:
5310-00-821-0563

Federal Supply Class:
5310

National Item Identification Number:
008210563

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:
32-50154-376301THE BOEING COMPANY


Techincal Specification:
HOLE DIAMETER0.390 INCHES NOMINAL
OUTSIDE DIAMETER0.750 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.080 INCHES NOMINAL
MATERIALSTEEL COMP 301 OVERALL
RECESS ANGLE90.0 DEGREES NOMINAL
RECESS DIAMETER0.493 INCHES NOMINAL
STYLE DESIGNATORRECESSED
SURFACE TREATMENTPASSIVATE OVERALL


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