5310-01-304-8737 WASHER,FLAT Index 5310-01-304-8739 WASHER,RECESSED

National Stock Number:
5310-01-304-8738

Federal Supply Class:
5310

National Item Identification Number:
013048738

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:
03A257C7A1W025NORTHROP GRUMMAN SYSTEMS CORP
03A257C7A76823NORTHROP GRUMMAN SYSTEMS CORPORATION
AS19879C7A10630ANILLO INDUSTRIES LLC
MM118C7A58009MOELLER MANUFACTURING & SUPPLY, LLC
NS202860C7A80539SPS TECHNOLOGIES, LLC
VN948BF7C92215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
HOLE DIAMETER0.439 INCHES MINIMUM AND 0.443 INCHES MAXIMUM
OUTSIDE DIAMETER0.807 INCHES MINIMUM AND 0.817 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5737 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5596 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5597 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5662 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.071 INCHES MINIMUM AND 0.085 INCHES MAXIMUM
MATERIALIRON ALLOY 660 OR NICKEL ALLOY 502 OVERALL
RECESS ANGLE80.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM
RECESS DIAMETER0.539 INCHES MINIMUM AND 0.549 INCHES MAXIMUM
STYLE DESIGNATORRECESSED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAS 4006 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTALUMINUM ALLOY OVERALL


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