Product Details | THRUST WASHER BEARING

3120-00-813-3749 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: 2640-808X01 PC13, 2640808X01PC13, 2640808X1PC13, 2640-808X1PC13, 2640859X1PC12, 2640-859X1PC12, 845-4687577 ITEM45, 8454687577ITEM45, 3120-00-813-3749, 00-813-3749, 3120008133749, 008133749

Bearings | Bearings, Plain, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 03 APR 1968 00-813-3749

Drawings & Photos | NSN 3120-00-813-3749


Demand History | NSN 3120-00-813-3749

Part Number Request Date QTY Origin
3120-00-813-3749 2025-09-259 49 DIBBS
3120-00-813-3749 2025-09-251 49 DIBBS
3120-00-813-3749 2018-11-310 106 DIBBS
3120-00-813-3749 2012-08-229 69 DIBBS
3120-00-813-3749 2012-06-159 54 DIBBS
3120-00-813-3749 2009-02-35 165 DIBBS
3120-00-813-3749 2008-11-325 254 DIBBS
3120-00-813-3749 2008-10-297 30 DIBBS

Cross Reference | NSN 3120-00-813-3749

Part Number Cage Code Manufacturer
2640-808X01 PC13 96169 ELECTRIC BOAT CORPORATION
2640-808X1PC13 96169 ELECTRIC BOAT CORPORATION
2640-859X1PC12 96169 ELECTRIC BOAT CORPORATION
845-4687577 ITEM45 53711 NAVAL SEA SYSTEMS COMMAND

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Technical Data | NSN 3120-00-813-3749

Characteristic Specifications
MATERIAL PLASTIC POLYAMIDE AND GRAPHITE OVERALL
STYLE DESIGNATOR 23 ROUND
OUTSIDE DIAMETER 2.1100 INCHES MINIMUM AND 2.1200 INCHES MAXIMUM
CORNER SHAPE SQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLE 35 RECTANGULAR
OVERALL THICKNESS 0.1200 INCHES MINIMUM AND 0.1300 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 42 ROUND
DIAMETER 1.7570 INCHES MINIMUM AND 1.7670 INCHES MAXIMUM
SURFACE FINISH 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY 125.0 MICROINCHES LARGEST OUTSIDE DIAMETER 63.0 MICROINCHES LEFT SIDE 63.0 MICROINCHES RIGHT SIDE
LUBRICATION MATERIAL LUBRICANT, MANUFACTURERS STANDARD

Restrictions/Controls & Freight Information | NSN 3120-00-813-3749

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 133300 MACHINERY/MACHINES NOI
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 742 unknown
Originating Activity Code KZ Defense Supply Center Philadelphia
Philadelphia, PA 19101
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

Management | NSN 3120-00-813-3749

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each