Product Details | FLAT WASHER

5310-01-149-4055 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: 72A0972012031, 72A097201-2031, 5310-01-149-4055, 01-149-4055, 5310011494055, 011494055

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 19 MAR 1983 01-149-4055

Drawings & Photos | NSN 5310-01-149-4055


Cross Reference | NSN 5310-01-149-4055

Part Number Cage Code Manufacturer
72A097201-2031 76301 BOEING COMPANY, THE DBA BOEING

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Technical Data | NSN 5310-01-149-4055

Characteristic Specifications
MATERIAL ALUMINUM ALLOY 5052 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION MIL-A-5052,H34 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT ANODIZE AND ENAMEL AND PRIMER OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-A-250/8,H34 FED SPEC 1ST TREATMENT RESPONSE OVERALL
HOLE DIAMETER 2.396 INCHES MINIMUM AND 2.416 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 3.458 INCHES MINIMUM AND 3.478 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.022 INCHES MINIMUM AND 0.042 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA 76301-72A097201 MANUFACTURERS STANDARD

Restrictions/Controls & Freight Information | NSN 5310-01-149-4055

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