4140-01-443-7504 FAN,CENTRIFUGAL Index 5340-01-443-7506 TENSIONER,ROTARY

National Stock Number:
5310-01-443-7505

Federal Supply Class:
5310

National Item Identification Number:
014437505

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:
1874AS112915280NORTHROP GRUMMAN SYSTEMS CORPORATION DIV ES DEFENSIVE SYSTEMS DIVISION
1874AS112926916NORTHROP GRUMMAN SYSTEMS CORPORATION
1874AS112930003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
HOLE DIAMETER0.113 INCHES MINIMUM AND 0.127 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.044 INCHES MINIMUM AND 0.048 INCHES MAXIMUM
MATERIALSTEEL COMP 303 OVERALL
OUTSIDE DIAMETER0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM
RECESS ANGLE100.0 DEGREES NOMINAL
RECESS DIAMETER0.225 INCHES MINIMUM AND 0.230 INCHES MAXIMUM
STYLE DESIGNATORRECESSED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL


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