5310-14-335-4878 WASHER,RECESSED Index 5310-14-335-4881 WASHER,FLAT

National Stock Number:
5310-14-335-4879

Federal Supply Class:
5310

National Item Identification Number:
143354879

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:
33488-80BCLEF0188BLANC AERO INDUSTRIES - GROUPE LISIAEROSPACE
33488-80BCLEF6117DASSAULT AVIATION
85-688-6981F5385SECTION DE CODIFICATION 85DGA/SMA/AIA/CP
33488BC080LF6117DASSAULT AVIATION
33488BC080LEF6117DASSAULT AVIATION
33488-80BCLEF6177SAFT


Techincal Specification:
HEAT TREATMENTAS FABRICATED
HOLE DIAMETER6.5 MILLIMETERS MINIMUM AND 6.72 MILLIMETERS MAXIMUM
MATERIALSTEEL COMP 35NC6 OVERALL
MINIMUM TENSILE STRENGTH880 NEWTONS PER SQUARE MILLIMETER
OUTSIDE DIAMETER12.73 MILLIMETERS MINIMUM AND 13.0 MILLIMETERS MAXIMUM
OVERALL HEIGHT2.7 MILLIMETERS MINIMUM AND 2.9 MILLIMETERS MAXIMUM
RADIUS1.0 MILLIMETERS NOMINAL
RECESS ANGLE90.0 DEGREES NOMINAL
RECESS DEPTH1.6 MILLIMETERS MINIMUM AND 1.8 MILLIMETERS MAXIMUM
RECESS DIAMETER8.2 MILLIMETERS MINIMUM AND 8.42 MILLIMETERS MAXIMUM
STYLE DESIGNATORERR-090
SURFACE FINISH3.2 MICRONS BOTTOM
SURFACE FINISH3.2 MICRONS TOP
SURFACE TREATMENTCADMIUM OVERALL AND CHROMATE OVERALL


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