Product Details | THRUST WASHER BEARING

3120-00-740-9978 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: M305851, 7409978, 7410010 , 3120-00-740-9978, 00-740-9978, 3120007409978, 007409978

Bearings | Bearings, Plain, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 01 JAN 1963 00-740-9978

Drawings & Photos | NSN 3120-00-740-9978


Demand History | NSN 3120-00-740-9978

Part Number Request Date QTY Origin
3120-00-740-9978 2009-01-13 562 DIBBS
3120-00-740-9978 2008-10-305 34 DIBBS

Cross Reference | NSN 3120-00-740-9978

Part Number Cage Code Manufacturer
7409978 19207 U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
M305851 61465 GARWOOD/FELLER INC GARWOOD WINCH DIV

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Technical Data | NSN 3120-00-740-9978

Characteristic Specifications
MATERIAL COPPER ALLOY 510 OVERALL
STYLE DESIGNATOR 23 ROUND
OUTSIDE DIAMETER 3.5000 INCHES NOMINAL
CORNER SHAPE SQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLE 35 RECTANGULAR
OVERALL THICKNESS 0.0615 INCHES MINIMUM AND 0.0655 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 42 ROUND
DIAMETER 2.2600 INCHES MINIMUM AND 2.2700 INCHES MAXIMUM
LUBRICATION MATERIAL LUBRICATING OIL, MIL-L-3572

Restrictions/Controls & Freight Information | NSN 3120-00-740-9978

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:AItem does not contain precious metal
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 194020 WASHERS/GASKETS/PCKG DVC ETC FELT
Less than car load rating J 100.2
Less than truck load rating J 100.2
Water commodity Code 713 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Y Protected cargo, other than above, including sensitive cargo requiring hand-to-hand receipt and/or security precautions.
Special Handling Code 5 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable