5310-01-189-4587 WASHER,FLAT Index 5310-01-189-4590 WASHER,FLAT

National Stock Number:
5310-01-189-4589

Federal Supply Class:
5310

National Item Identification Number:
011894589

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:
8DIN144010630ANILLO INDUSTRIES LLC
8DIN144086928SEASTROM MANUFACTURING CO INC
HS7012-802731MCDONNELL DOUGLAS HELICOPTER CO INC
HS7012-810630ANILLO INDUSTRIES LLC
M8DIN144021969ZELENDA MACHINE AND TOOLS CORP
HS7012-88V613THE BOEING COMPANY
OSS7012-81YQE8ALLIANT TECHSYSTEMS OPERATIONS LLC
OSS7012-88KP69NORTHROP GRUMMAN SYSTEMS CORP


Techincal Specification:
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER8.0 MILLIMETERS NOMINAL
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER16.0 MILLIMETERS NOMINAL
CROSS-SECTIONAL SHAPE STYLEBLANK RECTANGULAR
THICKNESS2.0 MILLIMETERS NOMINAL
OUTSIDE LEFT CORNER CHAMFER ANGLE45.0 DEGREES NOMINAL


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