Product Details | THRUST WASHER BEARING

3120-00-497-9657 An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also WASHER, FLAT and SPACER, SLEEVE.

Part Alternates: 7338585, 3120-00-497-9657, 00-497-9657, 3120004979657, 004979657

Bearings | Bearings, Plain, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 03 OCT 1969 00-497-9657

Drawings & Photos | NSN 3120-00-497-9657


Cross Reference | NSN 3120-00-497-9657

Part Number Cage Code Manufacturer
7338585 19207 U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

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Technical Data | NSN 3120-00-497-9657

Characteristic Specifications
STYLE DESIGNATOR 23 ROUND
OUTSIDE DIAMETER 3.2500 INCHES NOMINAL
CORNER SHAPE SQUARE FIRST OUTSIDE CORNER SQUARE SECOND OUTSIDE CORNER SQUARE FIRST INSIDE CORNER SQUARE SECOND INSIDE CORNER SQUARE THIRD INSIDE CORNER SQUARE FOURTH INSIDE CORNER
COUNTERBORE DIAMETER 3.1250 INCHES NOMINAL
COUNTERBORE DEPTH 0.0600 INCHES NOMINAL
OVERALL THICKNESS 0.1150 INCHES NOMINAL
CENTER HOLE SHAPE STYLE 42 ROUND
DIAMETER 1.8280 INCHES NOMINAL
FEATURES PROVIDED CASEHARDENED
MANUFACTURERS CODE 19207
DESIGN CONTROL REFERENCE 7338585

Restrictions/Controls & Freight Information | NSN 3120-00-497-9657

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
NMF Description 114850 BEARING/BUSHING O/T BALL/ROLLER I/S
Less than car load rating W Rating Variable
Less than truck load rating Q 70.0
Water commodity Code 742 unknown
Originating Activity Code BE
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable