Product Details | SELF-ALIGNING PLAIN BEARING

3120-01-040-8740 A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes BEARING, PLAIN, ROD END and BEARING, PLAIN, SPHERICAL.

Part Alternates: ABW4512, ABW4-5-12, AW4CRG12, BACB10A201GM2, BACB10X3MT, BACB10X3TM, BSSR4625G, BSSR4625-G, BSSR48C6EC2, BSSR-48C6EC2, HU4136M, HU4-136M, KWB4CRGD5, KWB-4CRGD5, KWB4SSG06, KWB-4SSG06, WS4E2, WS-4E-2, 55303M, 3120-01-040-8740, 01-040-8740, 3120010408740, 010408740

Bearings | Bearings, Plain, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 16 MAY 1977 01-040-8740

Drawings & Photos | NSN 3120-01-040-8740


Demand History | NSN 3120-01-040-8740

Part Number Request Date QTY Origin
55303M 2023-11-323 102 DIBBS
BACB10X3TM 2023-11-323 102 DIBBS
HU4-136M 2023-11-323 102 DIBBS
WS-4E-2 2023-11-323 102 DIBBS
AW4CRG12 2023-06-153 46 United States
3120-01-040-8740 2021-02-43 12 United States
55303M 2019-11-317 4 DIBBS
BACB10X3TM 2019-11-317 4 DIBBS
HU4-136M 2019-11-317 4 DIBBS
WS-4E-2 2019-11-317 4 DIBBS
BACB10A201GM2 2019-09-261 12 United States
3120-01-040-8740 2019-09-248 12 United States
55303M 2019-04-112 116 DIBBS
BACB10X3TM 2019-04-112 116 DIBBS
HU4-136M 2019-04-112 116 DIBBS
WS-4E-2 2019-04-112 116 DIBBS
55303M 2019-04-104 116 DIBBS
BACB10X3TM 2019-04-104 116 DIBBS
HU4-136M 2019-04-104 116 DIBBS
WS-4E-2 2019-04-104 116 DIBBS
3120-01-040-8740 2017-12-341 42 DIBBS
3120-01-040-8740 2017-11-333 42 DIBBS
3120-01-040-8740 2017-05-126 24 DIBBS
3120-01-040-8740 2017-04-94 24 DIBBS
3120-01-040-8740 2015-10-287 40 US
AW4CRG12 2008-07-191 5 US

Cross Reference | NSN 3120-01-040-8740

Part Number Cage Code Manufacturer
55303M 04320 CURTISS-WRIGHT CONTROLS INTEGRATED SENSING, INC.
55303M 09455 RBC TRANSPORT DYNAMICS CORP. DIV RBC TRANSPORT DYNAMICS
ABW4-5-12 50294 NEW HAMPSHIRE BALL BEARINGS, INC. DBA NHBB
ABW4-5-12 S0352 MINEBEA CO., LTD.
AW4CRG12 15860 NEW HAMPSHIRE BALL BEARINGS, INC. DBA ASTRO DIVISION
BACB10A201GM2 81205 THE BOEING COMPANY DBA BOEING
BACB10X3MT 81205 THE BOEING COMPANY DBA BOEING
BACB10X3TM 02758 U S BEARINGS
BACB10X3TM 09455 RBC TRANSPORT DYNAMICS CORP. DIV RBC TRANSPORT DYNAMICS
BACB10X3TM 15860 NEW HAMPSHIRE BALL BEARINGS, INC. DBA ASTRO DIVISION
BACB10X3TM 16746 SPECLINE INC.
BACB10X3TM 56644 AURORA BEARING COMPANY
BACB10X3TM 81205 THE BOEING COMPANY DBA BOEING
BACB10X3TM S0352 MINEBEA CO., LTD.
BSSR-48C6EC2 81376 RBC SOUTHWEST PRODUCTS, INC.
BSSR4625-G 81376 RBC SOUTHWEST PRODUCTS, INC.
HU4-136M 02758 U S BEARINGS
KWB-4CRGD5 97613 DOVER ENGINEERED SYSTEMS, INC. DBA KAHR BEARING
KWB-4SSG06 97613 DOVER ENGINEERED SYSTEMS, INC. DBA KAHR BEARING
WS-4E-2 73134 ROLLER BEARING COMPANY OF AMERICA, INC.

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Technical Data | NSN 3120-01-040-8740

Characteristic Specifications
MATERIAL STEEL COMP 440C INNER MEMBER STEEL COMP 630 OUTER RACE MEMBER
HARDNESS RATING 50.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM INNER MEMBER 28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
STYLE DESIGNATOR 11B WITHOUT INSERT OR LINER
BORE DIAMETER 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM
OUTER MEMBER OUTSIDE DIAMETER 0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM
OUTER MEMBER WIDTH 0.3220 INCHES MINIMUM AND 0.3320 INCHES MAXIMUM
INNER MEMBER WIDTH 0.4320 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM
LUBRICATION MATERIAL LUBRICANT, DRY FILM, BMS 3-8, MCDONNELL DOUGLAS CORP, MCDONNELL AIRCRAFT DIVISION
STATIC RADIAL LOAD RATING 17500 POUNDS
MANUFACTURERS CODE 81205
MFR SOURCE CONTROLLING REFERENCE BACB10X3TM

Restrictions/Controls & Freight Information | NSN 3120-01-040-8740

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: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
Less than truck load rating Q 70.0
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 3120-01-040-8740

Category Code Description
Budget Code9 General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
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