PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet
MRO / Bearings / 3130-00-146-4645

L9Bearing Unit,plain

Circor Naval Solutions Llc Dba Warren Pumps · NSN 3130-00-146-4645 · FSC 3130 · No Item Name Available
Verified by PartsTable
NSN 3130-00-146-4645 — this item is cataloged by the U.S. Government under National Stock Number 3130-00-146-4645. Primary manufacturer part number: L9.
⌀2.0000 INCHES NOMINAL IN W 0.8750 INCHES NOMINAL IN TAPERED ROLLER BEARING
3130-00-146-4645 — No Item Name Available illustration
Features
  • Bearing Unit,plain — FSC 3130
  • Groove Width: 0.8750 INCHES NOMINAL IN
  • Housing Width: 4.1250 INCHES NOMINAL IN
  • Housing Length: 4.5625 INCHES NOMINAL IN
  • Bore Diameter: 2.0000 INCHES NOMINAL IN
  • Style Designator: FRAME TYPE
  • 1 verified cross-reference
  • Primary manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing Unit,plain, cataloged under National Stock Number 3130-00-146-4645, is classified within Federal Supply Class 3130 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3130-00-146-4645
Primary Part NumberL9
Item NameBearing Unit,plain
FSC / FSG3130 / 31 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Groove Width0.8750 INCHES NOMINAL IN
Housing Width4.1250 INCHES NOMINAL IN
Housing Length4.5625 INCHES NOMINAL IN
Bore Diameter2.0000 INCHES NOMINAL IN
Style DesignatorFRAME TYPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
⇄ Verified Substitutes 10
3110-00-100-601214547-133 INTERCHANGEABLE
Bearing,roller,tapered
Calgon Carbon Uv Technologies Llc Dba Hyde Marine
5120-00-189-29875120-00-189-2987 INTERCHANGEABLE
Key,socket Head Screw
General Services Administration Federal Supply Service
5340-00-194-2810 INTERCHANGEABLE
Strap,retaining
5325-00-992-557760A113C28-1 INTERCHANGEABLE
Lock Spring,turnlock Fastener
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
4720-01-227-1979 INTERCHANGEABLE
Hose,air Duct
3040-01-251-9862 INTERCHANGEABLE
Gearshaft,helical
3110-01-277-7181L9 INTERCHANGEABLE
Bearing,ball,annular
Emglo Products Corp
6210-01-327-10269001L-9 INTERCHANGEABLE
Lens,light
Schneider Electric Usa, Inc.
5985-01-501-9443L9EA INTERCHANGEABLE
Antenna
Smiths Interconnect Inc Div Smiths Interconnect Inc - Tampa
5340-01-735-9117992170-137 INTERCHANGEABLE
Cap,protective,dust and Moisture
L3harris Technologies, Inc. Dba L3harris Technologies Div Sas1
Cross-Reference Index
Part NumberManufacturer
L9 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
3110-00-100-6012INTERCHANGEABLE
BEARING,ROLLER,TAPERED
14547-133
5120-00-189-2987INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-189-2987
5340-00-194-2810INTERCHANGEABLE
STRAP,RETAINING
5325-00-992-5577INTERCHANGEABLE
LOCK SPRING,TURNLOCK FASTENER
60A113C28-1
4720-01-227-1979INTERCHANGEABLE
HOSE,AIR DUCT
3040-01-251-9862INTERCHANGEABLE
GEARSHAFT,HELICAL
3110-01-277-7181INTERCHANGEABLE
BEARING,BALL,ANNULAR
L9
6210-01-327-1026INTERCHANGEABLE
LENS,LIGHT
9001L-9
5985-01-501-9443INTERCHANGEABLE
ANTENNA
L9EA
5340-01-735-9117INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
992170-137

Frequently Asked Questions

What is NSN 3130-00-146-4645?

NSN 3130-00-146-4645 is a Bearing Unit,plain, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 3130 (No Item Name Available). Status: active.

What are the part numbers for NSN 3130-00-146-4645?

NSN 3130-00-146-4645 has 1 cross-referenced part number: L9 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 3130-00-146-4645?

There are 10 known substitutes for 3130-00-146-4645: 3110-00-100-6012, 5120-00-189-2987, 5340-00-194-2810 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L9?

Key specifications for L9: Groove Width: 0.8750 INCHES NOMINAL IN; Housing Width: 4.1250 INCHES NOMINAL IN; Housing Length: 4.5625 INCHES NOMINAL IN; Bore Diameter: 2.0000 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

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