5310-01-399-6912 WASHER,FLAT Index 5305-01-399-6914 SCREW,MACHINE

National Stock Number:
5310-01-399-6913

Federal Supply Class:
5310

National Item Identification Number:
013996913

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:
ST1575-1077445RTX CORPORATION


Techincal Specification:
HOLE DIAMETER0.252 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD 1ST MATERIAL RESPONSE OVERALL OR AMS 5512 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 321 OVERALL OR STEEL COMP 347 OVERALL
PROPRIETARY CHARACTERISTICSPACS
OUTSIDE DIAMETER0.625 INCHES NOMINAL
RECESS DEPTH0.080 INCHES NOMINAL
RECESS DIAMETER0.304 INCHES NOMINAL
SURFACE TREATMENTPASSIVATE OVERALL


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