3120-01-235-3081 BEARING,WASHER,THRUST Index 5310-01-235-3083 WASHER,FLAT

National Stock Number:
5310-01-235-3082

Federal Supply Class:
5310

National Item Identification Number:
012353082

Description:
WASHER,FLAT

Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.


Manufacturer Information:
9328589-119200US ARMY ARDEC RDECOM


Techincal Specification:
MATERIALSTEEL COMP 4130 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.505 INCHES NOMINAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER1.000 INCHES NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.255 INCHES NOMINAL
INSIDE LEFT CORNER CHAMFER ANGLE45.0 DEGREES NOMINAL
INSIDE RIGHT CORNER CHAMFER ANGLE45.0 DEGREES NOMINAL
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND
45.0 ROCKWELL C MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE19200
DESIGN CONTROL REFERENCE9328589-1


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