5330-00-094-3555 PACKING,PREFORMED Index 5310-00-094-3557 WASHER,RECESSED

National Stock Number:
5310-00-094-3556

Federal Supply Class:
5310

National Item Identification Number:
000943556

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:
LS2816-398897LOCKHEED MARTIN CORP


Techincal Specification:
HOLE DIAMETER0.1675 INCHES MINIMUM AND 0.1745 INCHES MAXIMUM
OUTSIDE DIAMETER0.500 INCHES NOMINAL
MATERIAL THICKNESS0.072 INCHES NOMINAL
MATERIALALUMINUM ALLOY 2024 OVERALL
RECESS DIAMETER0.372 INCHES NOMINAL
RECESS ANGLE119.0 DEGREES MINIMUM AND 121.0 DEGREES MAXIMUM
STYLE DESIGNATORRECESSED


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