5310-01-272-4831 WASHER,LOCK Index 5310-01-272-4833 WASHER,RECESSED

National Stock Number:
5310-01-272-4832

Federal Supply Class:
5310

National Item Identification Number:
012724832

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:
123W60046-1326512NORTHROP GRUMMAN SYSTEMS CORPORATION
123W60046-1379RG9NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.376 INCHES MINIMUM AND 0.380 INCHES MAXIMUM
OUTSIDE DIAMETER0.656 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.047 INCHES MINIMUM AND 0.067 INCHES MAXIMUM
MATERIALSTEEL COMP 4130 OVERALL
RECESS ANGLE47.0 DEGREES NOMINAL
RECESS DIAMETER0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL


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