5310-01-077-5826 WASHER,FLAT Index 5310-01-077-5828 WASHER,RECESSED

National Stock Number:
5310-01-077-5827

Federal Supply Class:
5310

National Item Identification Number:
010775827

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:
810-4384681 PIECE 3253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
HOLE DIAMETER1.094 INCHES NOMINAL
OUTSIDE DIAMETER3.718 INCHES MINIMUM AND 3.720 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION168 (DELRIN),FSCM 07555 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM
MATERIALPLASTIC ACETAL OVERALL
RECESS DIAMETER1.156 INCHES NOMINAL
RECESS ANGLE90.0 DEGREES NOMINAL
SPECIAL FEATURESCHAMFER TOP AND BOTTOM OUTSIDE CORNERS 0.010 IN. MIN,0.013 IN. MAX BY 45 DEG
STYLE DESIGNATORRECESSED
SURFACE FINISH63.0 MICROINCHES ALL SURFACES


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