5310-00-912-6119 WASHER,RECESSED Index 5310-00-912-6121 WASHER,SPECIAL

National Stock Number:
5310-00-912-6120

Federal Supply Class:
5310

National Item Identification Number:
009126120

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:
64127W656878SPS TECHNOLOGIES, LLC
7611-06019L2ESNA, LLC
K28-615653HOWMET GLOBAL FASTENING SYSTEMS INC
7611-0672962HARVARD INDUSTRIES INC
C396-6B81755LOCKHEED MARTIN CORPORATION


Techincal Specification:
MATERIALSTEEL COMP 8740 OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND
46.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORRECESSED
HOLE DIAMETER0.531 INCHES MINIMUM AND
0.537 INCHES MAXIMUM
OUTSIDE DIAMETER0.780 INCHES MINIMUM AND
0.790 INCHES MAXIMUM
RECESS DIAMETER0.640 INCHES MINIMUM AND
0.650 INCHES MAXIMUM
RECESS DEPTH0.104 INCHES NOMINAL
MATERIAL THICKNESS0.170 INCHES MINIMUM AND
0.180 INCHES MAXIMUM
RECESS ANGLE90.0 DEGREES NOMINAL


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