5340-01-406-7411 COVER,ACCESS Index 5340-01-406-7413 STRAP,WEBBING

National Stock Number:
5310-01-406-7412

Federal Supply Class:
5310

National Item Identification Number:
014067412

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:
1308047404939LOCKHEED MARTIN CORPORATION
1308047458260PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH


Techincal Specification:
MATERIALALUMINUM ALLOY 6061 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORRECESSED
HOLE DIAMETER0.150 INCHES NOMINAL
OUTSIDE DIAMETER0.300 INCHES NOMINAL
RECESS DIAMETER0.225 INCHES NOMINAL
MATERIAL THICKNESS0.047 INCHES MINIMUM AND
0.051 INCHES MAXIMUM
RECESS ANGLE100.0 DEGREES NOMINAL


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