PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W307TTC3SS50381ABearing,ball,annular

Timken Co Div the Timken Company · NSN 3110-00-227-2438 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-227-2438 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-227-2438. Primary manufacturer part number: W307TTC3SS50381A.
Features
  • Bearing,ball,annular — FSC 3110
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE CARTRIDGE TYPE
  • Material: RUBBER SYNTHETIC SEAL
  • Seal Quantity: 2
  • Bore Shape: STRAIGHT
  • Lubrication Material: GREASE
  • Retainer Fabrication Method: PRESSED
  • Internal Fit-Up Designation: STANDARD
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Rubber Synthetic Seal construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-227-2438, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-227-2438
Primary Part NumberW307TTC3SS50381A
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusCANCELLED
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE CARTRIDGE TYPE
MaterialRUBBER SYNTHETIC SEAL
Seal Quantity2
Bore ShapeSTRAIGHT
Lubrication MaterialGREASE
Retainer Fabrication MethodPRESSED
Internal Fit-Up DesignationSTANDARD
Standard Tolerance DesignationABEC NO.1
Bearing Seal TypeCONTACT
Lubrication Material Document and ClassificationMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
Surface FinishGROUND
Load DirectionRADIAL
MaterialSTEEL RETAINER
MaterialSTEEL OUTER RING
MaterialSTEEL BALL
Bore Diameter35.00 MILLIMETERS NOMINAL MM
Overall Outside Diameter80.00 MILLIMETERS NOMINAL MM
MaterialSTEEL INNER RING
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
2805-00-321-2670 INTERCHANGEABLE
Housing,tachometer
5342-01-066-725935018 INTERCHANGEABLE
Latch,arm-Inlet
Williams International Co., L.l.c.
5315-01-268-551635018 INTERCHANGEABLE
Pin,straight,headless
Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
3040-01-312-5682 INTERCHANGEABLE
Guide,chain,hoist
6680-01-467-27293501-8 INTERCHANGEABLE
Float,switch,liquid Level
Martin Diesel, Inc.
6240-01-474-088935018 INTERCHANGEABLE
Lamp,fluorescent
Technical Consumer Products, Inc.
6515-01-537-90139018 INTERCHANGEABLE
Needle Set,intraosseous Injectio
Vidacare Corporation
Cross-Reference Index
Part NumberManufacturer
RM31A412 Heil Environmental Industries (USA)
732A501AKP1 General Electric Co Motor Business Group (USA)
FFB171/10J07A2B Federal Specifications Promulgated by General Services Administration Washington DC (USA)
35018 Prestolite Electric Inc (USA)
BM5331 Cooper Cameron Corp Ajax-Superior Div (USA)
RR278 Holmes Intl Inc (USA)
A-A-59596 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
W307PPFS104 Timken Co Div the Timken Company (USA)
W307TTC3SS50381A PRIMARY Timken Co Div the Timken Company (USA)
FF-B-171B/10 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
W307PPFS104 Prestolite Electric Inc (USA)
W307PPFS381A Timken Co Div the Timken Company (USA)
Related Parts
2805-00-321-2670INTERCHANGEABLE
HOUSING,TACHOMETER
5342-01-066-7259INTERCHANGEABLE
LATCH,ARM-INLET
35018
5315-01-268-5516INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
35018
3040-01-312-5682INTERCHANGEABLE
GUIDE,CHAIN,HOIST
6680-01-467-2729INTERCHANGEABLE
FLOAT,SWITCH,LIQUID LEVEL
3501-8
6240-01-474-0889INTERCHANGEABLE
LAMP,FLUORESCENT
35018
6515-01-537-9013INTERCHANGEABLE
NEEDLE SET,INTRAOSSEOUS INJECTIO
9018

Frequently Asked Questions

What is NSN 3110-00-227-2438?

NSN 3110-00-227-2438 is a Bearing,ball,annular, manufactured by Timken Co Div the Timken Company, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-227-2438?

NSN 3110-00-227-2438 has 12 cross-referenced part numbers: RM31A412 (Heil Environmental Industries), 732A501AKP1 (General Electric Co Motor Business Group), FFB171/10J07A2B (Federal Specifications Promulgated by General Services Administration Washington DC), 35018 (Prestolite Electric Inc), BM5331 (Cooper Cameron Corp Ajax-Superior Div) and 7 more.

What NSN replaces 3110-00-227-2438?

There are 7 known substitutes for 3110-00-227-2438: 2805-00-321-2670, 5342-01-066-7259, 5315-01-268-5516 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W307TTC3SS50381A?

Key specifications for W307TTC3SS50381A: Special Features: W/O GREASE PLUG; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE CARTRIDGE TYPE; Material: RUBBER SYNTHETIC SEAL; Seal Quantity: 2. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-227-2438 still in active supply?

NSN 3110-00-227-2438 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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