PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W312PPFS50381ABearing,ball,annular

Timken Co Div the Timken Company · NSN 3110-00-227-4111 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-227-4111 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-227-4111. Primary manufacturer part number: W312PPFS50381A.
Features
  • Bearing,ball,annular — FSC 3110
  • Seal Quantity: 2
  • Load Direction: RADIAL
  • Bore Shape: STRAIGHT
  • Surface Finish: GROUND
  • Standard Tolerance Designation: ABEC NO.1
  • Lubrication Material: GREASE
  • Internal Fit-Up Designation: STANDARD
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 3110-00-227-4111, 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 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-227-4111
Primary Part NumberW312PPFS50381A
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusACTIVE
Seal Quantity2
Load DirectionRADIAL
Bore ShapeSTRAIGHT
Surface FinishGROUND
Standard Tolerance DesignationABEC NO.1
Lubrication MaterialGREASE
Internal Fit-Up DesignationSTANDARD
Bearing Seal TypeCONTACT
Lubrication Material Document and ClassificationMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
Retainer Fabrication MethodPRESSED
MaterialSTEEL BALL
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE CARTRIDGE TYPE
MaterialSTEEL INNER RING
Overall Outside Diameter130.00 MILLIMETERS NOMINAL MM
Bore Diameter60.00 MILLIMETERS NOMINAL MM
MaterialSTEEL RETAINER
MaterialRUBBER SYNTHETIC SEAL
MaterialSTEEL OUTER RING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-158-8269 INTERCHANGEABLE
Bearing,ball,annular
3110-01-631-7710 INTERCHANGEABLE
Bearing,ball,annular
Cross-Reference Index
Part NumberManufacturer
W312PPFS50381A PRIMARY Timken Co Div the Timken Company (USA)
6301-3224689PC16 Naval Ship Systems Command (USA)
W312PPFS381A Timken Co Div the Timken Company (USA)
S3612 Electric Machinery Dresser Industries Inc (USA)
W312PP Timken Co Div the Timken Company (USA)
Related Parts
3110-00-158-8269INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-01-631-7710INTERCHANGEABLE
BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 3110-00-227-4111?

NSN 3110-00-227-4111 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 3110-00-227-4111?

NSN 3110-00-227-4111 has 5 cross-referenced part numbers: W312PPFS50381A (Timken Co Div the Timken Company), 6301-3224689PC16 (Naval Ship Systems Command), W312PPFS381A (Timken Co Div the Timken Company), S3612 (Electric Machinery Dresser Industries Inc), W312PP (Timken Co Div the Timken Company).

What NSN replaces 3110-00-227-4111?

There are 2 known substitutes for 3110-00-227-4111: 3110-00-158-8269, 3110-01-631-7710. Verify interchangeability with system specifications before substitution.

What are the specifications of W312PPFS50381A?

Key specifications for W312PPFS50381A: Seal Quantity: 2; Load Direction: RADIAL; Bore Shape: STRAIGHT; Surface Finish: GROUND. 20 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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