5310-01-223-7138 WASHER,LOCK Index 5331-01-223-7140 O-RING

National Stock Number:
5310-01-223-7139

Federal Supply Class:
5310

National Item Identification Number:
012237139

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:
140-007-20-19-210630ANILLO INDUSTRIES LLC
140-007-20-19-297499BELL TEXTRON INC


Techincal Specification:
BOTTOM RECESS ANGLE89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM
BOTTOM RECESS DIAMETER0.352 INCHES MINIMUM AND 0.379 INCHES MAXIMUM
COLORYELLOW OR BROWN OVERALL
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY HEAT TREAT PER MIL-H-6875
HOLE DIAMETER0.312 INCHES MINIMUM AND 0.319 INCHES MAXIMUM
OUTSIDE DIAMETER0.584 INCHES MINIMUM AND 0.604 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.062 INCHES MINIMUM AND 0.071 INCHES MAXIMUM
MATERIALSTEEL COMP H11 OVERALL
MINIMUM TENSILE STRENGTH240000 POUNDS PER SQUARE INCH
SPECIAL FEATURESSURFACES ARE VACUUM PLATED
STYLE DESIGNATORRECESSED BOTH SIDES
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-8837 MIL SPEC ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
TOP RECESS ANGLE89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM
TOP RECESS DIAMETER0.352 INCHES MINIMUM AND 0.379 INCHES MAXIMUM


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