2840-00-979-8432 DISK AND HUB,COMPRESSOR,AIRCRAFT Index 2840-00-979-8437 DISK,AXIAL COMPRESSOR,TURBINE EN

National Stock Number:
5310-00-979-8434

Federal Supply Class:
5310

National Item Identification Number:
009798434

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:
VN900-5C92215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
HOLE DIAMETER0.315 INCHES MINIMUM AND 0.324 INCHES MAXIMUM
OUTSIDE DIAMETER0.583 INCHES MINIMUM AND 0.603 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.068 INCHES MINIMUM AND 0.088 INCHES MAXIMUM
RECESS ANGLE40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM
RECESS DIAMETER0.406 INCHES MAXIMUM
STYLE DESIGNATORRECESSED
SURFACE TREATMENTPASSIVATE OVERALL


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