5310-01-210-0819 WASHER,LOCK Index 5331-01-210-0821 O-RING

National Stock Number:
5310-01-210-0820

Federal Supply Class:
5310

National Item Identification Number:
012100820

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:
123295B45152OSHKOSH CORP
123295B75Q65OSHKOSH DEFENSE LLC


Techincal Specification:
FEATURES PROVIDEDCASEHARDENED
HOLE DIAMETER2.760 INCHES MINIMUM AND 2.770 INCHES MAXIMUM
MATERIAL THICKNESS0.723 INCHES MINIMUM AND 0.727 INCHES MAXIMUM
MATERIALSTEEL OVERALL
PROPRIETARY CHARACTERISTICSPACS
OUTSIDE DIAMETER3.750 INCHES NOMINAL
RECESS ANGLE60.0 DEGREES NOMINAL
STYLE DESIGNATORRECESSED


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