5310-01-054-2566 WASHER,FLAT Index 5310-01-054-2568 WASHER,FLAT

National Stock Number:
5310-01-054-2567

Federal Supply Class:
5310

National Item Identification Number:
010542567

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:
44-0023-295750AIRCO REPUBLIC ELECTRONICS, INC.
5712-28-2586928SEASTROM MANUFACTURING CO INC


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.143 INCHES MINIMUM AND 0.153 INCHES MAXIMUM
OVERALL DIAMETER0.262 INCHES MINIMUM AND 0.282 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/8 H32 H34 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 5052 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.025 INCHES NOMINAL


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