3110-00-941-3529 BEARING,BALL,AIRFRAME Index 5310-00-941-3531 WASHER,FLAT

National Stock Number:
5310-00-941-3530

Federal Supply Class:
5310

National Item Identification Number:
009413530

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:
6-548650JRC1NORTHROP GRUMMAN TECHNICAL SERVICES, INC.
6-5486576823NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
HOLE DIAMETER0.319 INCHES NOMINAL
OUTSIDE DIAMETER0.562 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7720 COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.060 INCHES NOMINAL
MATERIALSTEEL COMP 303 OVERALL
RECESS ANGLE110.0 DEGREES NOMINAL
RECESS DIAMETER0.490 INCHES NOMINAL
STYLE DESIGNATORRECESSED
SURFACE TREATMENTPASSIVATE OVERALL


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