5310-00-641-9513 WASHER,FLAT Index 5310-00-641-9523 WASHER,FLAT

National Stock Number:
5310-00-641-9518

Federal Supply Class:
5310

National Item Identification Number:
006419518

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:
32397956232LOCKHEED MARTIN CORPORATION
CVC754-224A1780378TRIUMPH AEROSTRUCTURES, LLC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.263 INCHES MINIMUM AND 0.271 INCHES MAXIMUM
OVERALL DIAMETER0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 5052 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH27.0 MICROINCHES ALL SURFACES
THICKNESS0.032 INCHES NOMINAL


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