5305-00-995-7031 SCREW,MACHINE Index 5355-00-995-7044 KNOB

National Stock Number:
5310-00-995-7043

Federal Supply Class:
5310

National Item Identification Number:
009957043

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:
29415010AFL4CHAMPION AEROSPACE LLC
294150194988COOPER INDUSTRIES INC CHAMPION AVIATION PRODUCTS


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
OVERALL DIAMETER0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 268 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENTNICKEL OVERALL
THICKNESS0.063 INCHES NOMINAL


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