2910-99-998-9587 TAPPET ASSEMBLY Index 4810-99-998-9688 SEAT,VALVE

National Stock Number:
5310-99-998-9674

Federal Supply Class:
5310

National Item Identification Number:
999989674

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:
LK70533K0378ROLLS-ROYCE PLC


Techincal Specification:
BOTTOM RECESS ANGLE88.0 DEGREES NOMINAL
HOLE DIAMETER6.40 MILLIMETERS MINIMUM AND 6.60 MILLIMETERS MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMSRR 7035 MFR REF SINGLE MATERIAL RESPONSE
MATERIAL THICKNESS1.90 MILLIMETERS MINIMUM AND 2.16 MILLIMETERS MAXIMUM
MATERIALSTEEL
OUTSIDE DIAMETER15.65 MILLIMETERS MINIMUM AND 16.15 MILLIMETERS MAXIMUM
SPECIAL FEATURESBEARING SURFACES 0.8 UM TEXTURE
RECESS DIAMETER7.82 MILLIMETERS NOMINAL
STYLE DESIGNATORRECESSED BOTH SIDES
TOP RECESS ANGLE92.0 DEGREES NOMINAL


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