PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203KLLG3Bearing,ball,annular

Timken Co Div the Timken Company · NSN 3110-00-156-3506 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-156-3506 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-156-3506. Primary manufacturer part number: 203KLLG3.
Features
  • Bearing,ball,annular — FSC 3110
  • Inner Ring Width: 0.6540 INCHES NOMINAL IN
  • Load Direction: RADIAL
  • Bearing Seal Type: CONTACT
  • Outer Ring Width: 0.4720 INCHES NOMINAL IN
  • Lubrication Material: GREASE
  • Seal Quantity: 2
  • Features Provided: SNAP RING-GROOVE MOUNTING AND MOUNTING GROOVE
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Ball construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-156-3506, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-156-3506
Primary Part Number203KLLG3
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusACTIVE
Inner Ring Width0.6540 INCHES NOMINAL IN
Load DirectionRADIAL
Bearing Seal TypeCONTACT
Outer Ring Width0.4720 INCHES NOMINAL IN
Lubrication MaterialGREASE
Seal Quantity2
Features ProvidedSNAP RING-GROOVE MOUNTING AND MOUNTING GROOVE
Standard Tolerance DesignationABEC NO.1
Lubrication Material Document and ClassificationOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
Bore ShapeSTRAIGHT
Surface FinishGROUND
Internal Fit-Up DesignationSTANDARD
MaterialSTEEL BALL
MaterialSTEEL INNER RING
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialRUBBER SYNTHETIC SEAL
MaterialSTEEL OUTER RING
Bore Diameter17.00 MILLIMETERS NOMINAL MM
Overall Outside Diameter40.00 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-296-53261756319 INTERCHANGEABLE
Splice Set,quick Disconnect
Naval Ship Systems Command
5360-00-316-5018 INTERCHANGEABLE
Spring,helical,extension
6680-00-394-7336B23 INTERCHANGEABLE
Tip,concave
Schulze Mfg., Inc.
4730-00-460-3713 INTERCHANGEABLE
Cap,hose
5975-00-497-2129250 INTERCHANGEABLE
Conduit Outlet
Hubbell-Raco Inc
5365-00-677-04029157177-2 INTERCHANGEABLE
Shim
Us Army Aviation and Missile Command
4140-00-782-4609 INTERCHANGEABLE
Blower,air
5820-00-857-9926124-0496-00 INTERCHANGEABLE
Handle Ball Pla
Alcatel-Lucent Holdings Inc.
6625-00-868-6094723899-460 INTERCHANGEABLE
Test Set,battery
Raytheon Company Div Rmd Strategic
3110-00-902-9318A25A709-034-101 INTERCHANGEABLE
Bearing,ball,annular
Lockheed Martin Corporation Div Lockheed Martin Systems & Global Solutions
Cross-Reference Index
Part NumberManufacturer
B23 British Sarozal Ltd (GBR)
488503 General Motors Corp Delco Moraine Ndh Div (USA)
488503X1C General Motors Corp Delco Moraine Ndh Div (USA)
954274 Borgwarner Pds (anderson), L.l.c. (USA)
954274 General Motors Corp Delco Remy Div (USA)
203KLLG3 PRIMARY Timken Co Div the Timken Company (USA)
488503 General Motors Corp (USA)
B23 Raytheon Company (USA)
954274 General Motors Corp (USA)
488503X1C General Motors Corp (USA)
954274 General Motors Corp Electro-Motive Div (USA)
Related Parts
5940-00-296-5326INTERCHANGEABLE
SPLICE SET,QUICK DISCONNECT
1756319
5360-00-316-5018INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
6680-00-394-7336INTERCHANGEABLE
TIP,CONCAVE
B23
4730-00-460-3713INTERCHANGEABLE
CAP,HOSE
5975-00-497-2129INTERCHANGEABLE
CONDUIT OUTLET
250
5365-00-677-0402INTERCHANGEABLE
SHIM
9157177-2
4140-00-782-4609INTERCHANGEABLE
BLOWER,AIR
5820-00-857-9926INTERCHANGEABLE
HANDLE BALL PLA
124-0496-00
6625-00-868-6094INTERCHANGEABLE
TEST SET,BATTERY
723899-460
3110-00-902-9318INTERCHANGEABLE
BEARING,BALL,ANNULAR
A25A709-034-101
5365-01-163-5720INTERCHANGEABLE
SPACER,RING
B-23
4730-01-177-0987INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT

Frequently Asked Questions

What is NSN 3110-00-156-3506?

NSN 3110-00-156-3506 is a Bearing,ball,annular, manufactured by Timken Co Div the Timken Company, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-156-3506?

NSN 3110-00-156-3506 has 11 cross-referenced part numbers: B23 (British Sarozal Ltd), 488503 (General Motors Corp Delco Moraine Ndh Div), 488503X1C (General Motors Corp Delco Moraine Ndh Div), 954274 (Borgwarner Pds (anderson), L.l.c.), 954274 (General Motors Corp Delco Remy Div) and 6 more.

What NSN replaces 3110-00-156-3506?

There are 12 known substitutes for 3110-00-156-3506: 5940-00-296-5326, 5360-00-316-5018, 6680-00-394-7336 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 203KLLG3?

Key specifications for 203KLLG3: Inner Ring Width: 0.6540 INCHES NOMINAL IN; Load Direction: RADIAL; Bearing Seal Type: CONTACT; Outer Ring Width: 0.4720 INCHES NOMINAL IN. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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