5310-01-117-3452 WASHER,FLAT Index 5310-01-117-3456 WASHER,SPRING TENSION

National Stock Number:
5310-01-117-3454

Federal Supply Class:
5310

National Item Identification Number:
011173454

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:
S9518412511SIMMONDS PRECISION PRODUCTS INC


Techincal Specification:
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.880 INCHES NOMINAL
OUTSIDE DIAMETER1.376 INCHES MINIMUM AND 1.378 INCHES MAXIMUM
OVERALL HEIGHT0.138 INCHES MINIMUM AND 0.142 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 410 OVERALL
RECESS DEPTH0.080 INCHES NOMINAL
RECESS DIAMETER1.005 INCHES MINIMUM AND 1.010 INCHES MAXIMUM
SPECIAL FEATURESCHAMFER 0.015 IN. MIN,0.035 IN. MAX BY 45 DEG BOTTOM OUTSIDE CORNER
STYLE DESIGNATORRECESSED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNS177,FSCM 12511 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL


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