5640-01-213-1277 INSULATION BLANKET,THERMAL Index 6220-01-213-1280 LIGHT,WARNING

National Stock Number:
5310-01-213-1278

Federal Supply Class:
5310

National Item Identification Number:
012131278

Description:
WASHER,CONCAVE

Detail:
A WASHER WHICH IS ROUND WITH A CENTRALLY LOCATED HOLE. ONE BEARING SURFACE IS SMOOTH, FLAT, AND UNBROKEN, THE OTHER BEARING SURFACE IS SMOOTH, UNBROKEN, AND IS RECESSED TO FORM A CURVED OR SPHERICAL CONTOUR. SEE ALSO WASHER (1), CONVEX. EXCLUDES WASHER (1), RECESSED AND BEARING, WASHER, THRUST.


Manufacturer Information:
13222E006797403CECOM LR CENTER


Techincal Specification:
HARDNESS RATING58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM
HOLE DIAMETER2.000 INCHES MINIMUM AND 2.030 INCHES MAXIMUM
MATERIALSTEEL OVERALL
PROPRIETARY CHARACTERISTICSPACS
OUTSIDE DIAMETER6.000 INCHES NOMINAL
RADIUS3.995 INCHES MINIMUM AND 4.000 INCHES MAXIMUM
STYLE DESIGNATORCONCAVE


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