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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.
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Manufacturer Information:
810-4384681 PIECE 32 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
HOLE DIAMETER | 1.094 INCHES NOMINAL | OUTSIDE DIAMETER | 3.718 INCHES MINIMUM AND 3.720 INCHES MAXIMUM | MATERIAL DOCUMENT AND CLASSIFICATION | 168 (DELRIN),FSCM 07555 MFR REF SINGLE MATERIAL RESPONSE OVERALL | MATERIAL THICKNESS | 0.123 INCHES MINIMUM AND 0.127 INCHES MAXIMUM | MATERIAL | PLASTIC ACETAL OVERALL | RECESS DIAMETER | 1.156 INCHES NOMINAL | RECESS ANGLE | 90.0 DEGREES NOMINAL | SPECIAL FEATURES | CHAMFER TOP AND BOTTOM OUTSIDE CORNERS 0.010 IN. MIN,0.013 IN. MAX BY 45 DEG | STYLE DESIGNATOR | RECESSED | SURFACE FINISH | 63.0 MICROINCHES ALL SURFACES |
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