5310-01-238-1223 WASHER,FLAT Index 5310-01-238-1225 WASHER,FLAT

National Stock Number:
5310-01-238-1224

Federal Supply Class:
5310

National Item Identification Number:
012381224

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:
R10417P2216331LOCKHEED MARTIN CORPORATION
WL333N06368W-L MOLDING CO
WL333N1YR83W-L MOLDING OF MICHIGAN, LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM
OVERALL DIAMETER0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM
MATERIALPLASTIC POLYIMIDE OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.057 INCHES MINIMUM AND 0.067 INCHES MAXIMUM


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