5310-01-048-2639 WASHER,LOCK Index 5310-01-048-2641 WASHER,RECESSED

National Stock Number:
5310-01-048-2640

Federal Supply Class:
5310

National Item Identification Number:
010482640

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:
140-007-49-48F797499BELL TEXTRON INC


Techincal Specification:
BOTTOM RECESS ANGLE90.0 DEGREES NOMINAL
BOTTOM RECESS DIAMETER0.916 INCHES MINIMUM AND 0.926 INCHES MAXIMUM
HOLE DIAMETER0.766 INCHES MINIMUM AND 0.776 INCHES MAXIMUM
OUTSIDE DIAMETER1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6485 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.213 INCHES MINIMUM AND 0.223 INCHES MAXIMUM
MATERIALSTEEL COMP H11 OVERALL
MINIMUM TENSILE STRENGTH240000 POUNDS PER SQUARE INCH
STYLE DESIGNATORRECESSED BOTH SIDES
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-8837,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
TOP RECESS ANGLE90.0 DEGREES NOMINAL
TOP RECESS DIAMETER0.916 INCHES MINIMUM AND 0.926 INCHES MAXIMUM


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