5310-00-400-3439 WASHER,RECESSED Index 5310-00-400-3444 WASHER,RECESSED

National Stock Number:
5310-00-400-3442

Federal Supply Class:
5310

National Item Identification Number:
004003442

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:
LS9851-9C98897LOCKHEED MARTIN CORP


Techincal Specification:
MATERIAL THICKNESS0.099 INCHES MINIMUM AND
0.119 INCHES MAXIMUM
RECESS ANGLE80.0 DEGREES MINIMUM AND
100.0 DEGREES MAXIMUM
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
THE MANUFACTURERS DATA
MANUFACTURERS CODE98897
DESIGN CONTROL REFERENCELS9851-9C
MATERIALSTEEL COMP 4130 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OR
MIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORRECESSED
HOLE DIAMETER0.564 INCHES MINIMUM AND
0.568 INCHES MAXIMUM
OUTSIDE DIAMETER1.045 INCHES MINIMUM AND
1.055 INCHES MAXIMUM
RECESS DIAMETER0.712 INCHES MINIMUM AND
0.722 INCHES MAXIMUM


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