PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RA3/4Bearing Unit,ball

Timken Co Div the Timken Company · NSN 3130-00-465-8579 · FSC 3130 · No Item Name Available
Verified by PartsTable
NSN 3130-00-465-8579 — this item is cataloged by the U.S. Government under National Stock Number 3130-00-465-8579. Primary manufacturer part number: RA3/4.
Features
  • Bearing Unit,ball — FSC 3130
  • Load Capability Type: RADIAL AND THRUST
  • Housing Diameter: 3.5625 INCHES NOMINAL IN
  • Flange Thickness: 0.1560 INCHES NOMINAL IN
  • Style Designator: FLANGE BLOCK
  • Material: STEEL HOUSING
  • Rotating Element Locking Method: SETSCREW LOCKING COLLAR
  • Collar Location: ONE END
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Housing construction
General Description

The Bearing Unit,ball, cataloged under National Stock Number 3130-00-465-8579, is classified within Federal Supply Class 3130 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3130-00-465-8579
Primary Part NumberRA3/4
Item NameBearing Unit,ball
FSC / FSG3130 / 31 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusCANCELLED
Load Capability TypeRADIAL AND THRUST
Housing Diameter3.5625 INCHES NOMINAL IN
Flange Thickness0.1560 INCHES NOMINAL IN
Style DesignatorFLANGE BLOCK
MaterialSTEEL HOUSING
Rotating Element Locking MethodSETSCREW LOCKING COLLAR
Collar LocationONE END
Assembly Overall Length1.2500 INCHES NOMINAL IN
Features ProvidedGROUND ROLLING ELEMENT GROOVE
Mounting Hole Width0.3438 INCHES NOMINAL IN
Housing Length0.6250 INCHES NOMINAL IN
Rolling Element Groove Quantity1
Bolt Circle Diameter2.8125 INCHES NOMINAL IN
Seal TypeCONTACT
Shaft End TypeOPEN
Block TypeFIXED
Lubrication MaterialGREASE
Internal Fit-Up DesignationSTANDARD
MaterialRUBBER AND STEEL SEAL
Seal LocationBOTH ENDS
Mounting Hole TypeSQUARE
Alignment TypeSELF-ALIGNING
Bore Diameter0.7500 INCHES NOMINAL IN
MaterialSTEEL BEARING SURFACE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
2910-00-097-4922 INTERCHANGEABLE
Parts Kit,fuel Pump
5935-00-348-4627 INTERCHANGEABLE
Socket,plug-in Electronic Compon
5977-00-552-1392XA-10103B INTERCHANGEABLE
Holder,electrical Contact Brush
Conductix Inc Div Conductix Wampfler
5905-01-146-28820698-8648 INTERCHANGEABLE
Resistor,fixed,film
Keysight Technologies Inc
6635-01-672-6389RA-3/4 INTERCHANGEABLE
Probe,eddy Current
Staveley Instruments
Cross-Reference Index
Part NumberManufacturer
RA3/4 PRIMARY Timken Co Div the Timken Company (USA)
FP12 Skf Usa Inc. (USA)
Related Parts
2910-00-097-4922INTERCHANGEABLE
PARTS KIT,FUEL PUMP
5935-00-348-4627INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
5977-00-552-1392INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
XA-10103B
5905-01-146-2882INTERCHANGEABLE
RESISTOR,FIXED,FILM
0698-8648
6635-01-672-6389INTERCHANGEABLE
PROBE,EDDY CURRENT
RA-3/4

Frequently Asked Questions

What is NSN 3130-00-465-8579?

NSN 3130-00-465-8579 is a Bearing Unit,ball, manufactured by Timken Co Div the Timken Company, classified under FSC 3130 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3130-00-465-8579?

NSN 3130-00-465-8579 has 2 cross-referenced part numbers: RA3/4 (Timken Co Div the Timken Company), FP12 (Skf Usa Inc.).

What NSN replaces 3130-00-465-8579?

There are 5 known substitutes for 3130-00-465-8579: 2910-00-097-4922, 5935-00-348-4627, 5977-00-552-1392 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RA3/4?

Key specifications for RA3/4: Load Capability Type: RADIAL AND THRUST; Housing Diameter: 3.5625 INCHES NOMINAL IN; Flange Thickness: 0.1560 INCHES NOMINAL IN; Style Designator: FLANGE BLOCK. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3130-00-465-8579 still in active supply?

NSN 3130-00-465-8579 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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