5310-00-639-1808 NUT,SELF-LOCKING,PLATE Index 5310-00-639-1821 WASHER,SPRING TENSION

National Stock Number:
5310-00-639-1820

Federal Supply Class:
5310

National Item Identification Number:
006391820

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:
35178963630SEANAIR, LLC
35178998897LOCKHEED MARTIN CORP


Techincal Specification:
HOLE DIAMETER0.920 INCHES MINIMUM AND 0.930 INCHES MAXIMUM
OUTSIDE DIAMETER1.470 INCHES MINIMUM AND 1.530 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6050 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
MATERIALSTEEL COMP 8630 OVERALL
RECESS ANGLE90.0 DEGREES NOMINAL
RECESS DIAMETER1.060 INCHES MINIMUM AND 1.070 INCHES MAXIMUM
STYLE DESIGNATORRECESSED


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