5310-01-268-5579 WASHER,LOCK Index 5330-01-268-5581 PACKING,PREFORMED

National Stock Number:
5310-01-268-5580

Federal Supply Class:
5310

National Item Identification Number:
012685580

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:
33-056182-0215280NORTHROP GRUMMAN SYSTEMS CORPORATION DIV ES DEFENSIVE SYSTEMS DIVISION
33-056182-0226916NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
MATERIALSTEEL COMP 303 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORRECESSED
HOLE DIAMETER0.138 INCHES NOMINAL
OUTSIDE DIAMETER0.302 INCHES MINIMUM AND
0.306 INCHES MAXIMUM
RECESS DIAMETER0.282 INCHES MINIMUM AND
0.287 INCHES MAXIMUM
MATERIAL THICKNESS0.058 INCHES MINIMUM AND
0.062 INCHES MAXIMUM
RECESS ANGLE100.0 DEGREES NOMINAL


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