5310-00-209-3619 WASHER,FLAT Index 6640-00-209-3624 BATH,CONSTANT TEMPERATURE

National Stock Number:
5310-00-209-3621

Federal Supply Class:
5310

National Item Identification Number:
002093621

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:
N402P39C1114736GENERAL ELECTRIC CO AIRCRAFT INSTRUMENTS DEPT ELECTRO CHEMICAL ENERGY CONVERSION PROGRAMS
N402P39C1124446GENERAL ELECTRIC COMPANY
N402P39C1197424AMETEK INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM
OVERALL DIAMETER0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THICKNESS0.036 INCHES MINIMUM AND 0.045 INCHES MAXIMUM


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