5310-01-331-1280 WASHER,FINISHING Index 5975-01-331-1282 ROD,GROUND

National Stock Number:
5310-01-331-1281

Federal Supply Class:
5310

National Item Identification Number:
013311281

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:
03A280C31W025NORTHROP GRUMMAN SYSTEMS CORP
AS32990C310630ANILLO INDUSTRIES LLC
MM891C358009MOELLER MANUFACTURING & SUPPLY, LLC
NS202859-380539SPS TECHNOLOGIES, LLC
NS202859C380539SPS TECHNOLOGIES, LLC
VN948YNP3C92215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
MATERIALNICKEL ALLOY 718 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5597 ASSN STD SINGLE MATERIAL RESPONSE OR
AMS5596 ASSN STD SINGLE MATERIAL RESPONSE OR
AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
45.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORRECESSED
HOLE DIAMETER0.191 INCHES MINIMUM AND
0.195 INCHES MAXIMUM
OUTSIDE DIAMETER0.357 INCHES MINIMUM AND
0.377 INCHES MAXIMUM
RECESS DIAMETER0.238 INCHES MINIMUM AND
0.248 INCHES MAXIMUM
MATERIAL THICKNESS0.057 INCHES MINIMUM AND
0.069 INCHES MAXIMUM
RECESS ANGLE40.0 DEGREES MINIMUM AND
50.0 DEGREES MAXIMUM


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