1680-00-928-7219 HOUSING ASSY,UPLOCK Index 1680-00-928-7222 INDEX PLATE ASSY,SE

National Stock Number:
5310-00-928-7220

Federal Supply Class:
5310

National Item Identification Number:
009287220

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:
2640-984PC796169ELECTRIC BOAT CORPORATION


Techincal Specification:
MATERIALPLASTIC OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.625 INCHES MINIMUM AND
0.629 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER0.869 INCHES MINIMUM AND
0.874 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.060 INCHES MINIMUM AND
0.063 INCHES MAXIMUM
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
THE MANUFACTURERS DATA
MANUFACTURERS CODE96169
DESIGN CONTROL REFERENCE2640-984PC7


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