5310-01-339-6991 WASHER,RECESSED Index 5330-01-339-6993 GASKET

National Stock Number:
5310-01-339-6992

Federal Supply Class:
5310

National Item Identification Number:
013396992

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:
03A257C51W025NORTHROP GRUMMAN SYSTEMS CORP
03A257C576823NORTHROP GRUMMAN SYSTEMS CORPORATION
AS19879C510630ANILLO INDUSTRIES LLC
MM118C558009MOELLER MANUFACTURING & SUPPLY, LLC
NS202860C580539SPS TECHNOLOGIES, LLC
VN948NP5C92215HOWMET GLOBAL FASTENING SYSTEMS INC


Techincal Specification:
MATERIALIRON ALLOY 660 OR
NICKEL ALLOY 718 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5525 ASSN STD 1ST MATERIAL RESPONSE OR
AMS5737 ASSN STD 1ST MATERIAL RESPONSE OR
AMS5596 ASSN STD 2ND MATERIAL RESPONSE OR
AMS5597 ASSN STD 2ND MATERIAL RESPONSE OR
AMS5662 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORRECESSED
HOLE DIAMETER0.314 INCHES MINIMUM AND
0.318 INCHES MAXIMUM
OUTSIDE DIAMETER0.575 INCHES MINIMUM AND
0.585 INCHES MAXIMUM
RECESS DIAMETER0.386 INCHES MINIMUM AND
0.396 INCHES MAXIMUM
MATERIAL THICKNESS0.057 INCHES MINIMUM AND
0.069 INCHES MAXIMUM
RECESS ANGLE90.0 DEGREES NOMINAL


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