Product Details | FLAT WASHER

5310-00-489-0740 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: 5310-00-489-0740, 00-489-0740, 5310004890740, 004890740

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 00-489-0740

Drawings & Photos | NSN 5310-00-489-0740


Cross Reference | NSN 5310-00-489-0740

Part Number Cage Code Manufacturer
2089427-2307 27914 HONEYWELL INTERNATIONAL INC DBA HONEYWELL
FFW92 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
MS15795-508 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES
MS15795-508 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS

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Technical Data | NSN 5310-00-489-0740

Characteristic Specifications
MATERIAL COPPER ALLOY OVERALL
SURFACE TREATMENT NICKEL OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-N-290,CLASS 1,TYPE 6 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HOLE DIAMETER 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.028 INCHES MINIMUM AND 0.040 INCHES MAXIMUM
MANUFACTURERS CODE 27914
DESIGN CONTROL REFERENCE 2089427-2307

Restrictions/Controls & Freight Information | NSN 5310-00-489-0740

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
Category Code Description
No Freight Information