5310-01-180-4783 WASHER,KEY Index 5310-01-180-4786 WASHER,FLAT

National Stock Number:
5310-01-180-4785

Federal Supply Class:
5310

National Item Identification Number:
011804785

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:
10110056A486GNIMIKKEISTOKESKUS NCB FINLAND
74A586244-20050A4A5NORTHROP INDUSTRIES
74A586244-200576301THE BOEING COMPANY
74A586244-200576823NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
MATERIALALUMINUM ALLOY 7075 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/12,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.196 INCHES MINIMUM AND
0.202 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.063 INCHES NOMINAL
THE MANUFACTURERS DATA
MANUFACTURERS CODE76301
DESIGN CONTROL REFERENCE74A586244-2005


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