Product Details | FLAT WASHER

5310-00-820-7939 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.

Part Alternates: WP226, WP22-6, 5310-00-820-7939, 00-820-7939, 5310008207939, 008207939

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1962 00-820-7939

Drawings & Photos | NSN 5310-00-820-7939


Demand History | NSN 5310-00-820-7939

Part Number Request Date QTY Origin
5310-00-820-7939 2017-10-304 84 United States
WP226 2016-03-78 21 United States

Cross Reference | NSN 5310-00-820-7939

Part Number Cage Code Manufacturer
WP22-6 56878 SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION

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Technical Data | NSN 5310-00-820-7939

Characteristic Specifications
MATERIAL STEEL COMP 4130 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM OVERALL
HOLE DIAMETER 0.380 INCHES NOMINAL
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.750 INCHES NOMINAL
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.069 INCHES NOMINAL
MANUFACTURERS CODE 56878
DESIGN CONTROL REFERENCE WP22-6

Restrictions/Controls & Freight Information | NSN 5310-00-820-7939

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information