Product Details | FLAT WASHER

5310-00-550-0890 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: 200918, 5310-00-550-0890, 00-550-0890, 5310005500890, 005500890

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 01-JAN-63 00-550-0890

Drawings & Photos | NSN 5310-00-550-0890


Cross Reference | NSN 5310-00-550-0890

Part Number Cage Code Manufacturer
200918 53247 PRODUCTS SUPPORT, INC.
CVC754-256E33 80378 TRIUMPH AEROSTRUCTURES, LLC DBA TRIUMPH AEROSTRUCTURES - VOUGHT
LD153-0011-0021 43999 BOEING COMPANY, THE DBA BOEING

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Technical Data | NSN 5310-00-550-0890

Characteristic Specifications
MATERIAL ALUMINUM ALLOY 5052 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS4016 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT ANODIZE OVERALL
HOLE DIAMETER 0.520 INCHES NOMINAL
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.860 INCHES NOMINAL
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.032 INCHES NOMINAL
MANUFACTURERS CODE 53247
DESIGN CONTROL REFERENCE 200918

Restrictions/Controls & Freight Information | NSN 5310-00-550-0890

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
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