PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4D2156Bearing Unit,plain

Caterpillar Inc Div Caterpillar Defense · NSN 3130-00-084-7530 · FSC 3130 · No Item Name Available
Verified by PartsTable
NSN 3130-00-084-7530 — this item is cataloged by the U.S. Government under National Stock Number 3130-00-084-7530. Primary manufacturer part number: 4D2156.
Features
  • Bearing Unit,plain — FSC 3130
  • Features Provided: REMOVABLE LINER
  • Material: STEEL OVERALL
  • Bore Diameter: 2.0000 INCHES MINIMUM AND 2.0006 INCHES MAXIMUM IN
  • Alignment Type: RIGID
  • Housing Length: 2.3800 INCHES MINIMUM AND 2.3980 INCHES MAXIMUM IN
  • Load Capability Type: RADIAL AND THRUST
  • 1 verified cross-reference
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing Unit,plain, cataloged under National Stock Number 3130-00-084-7530, is classified within Federal Supply Class 3130 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 6 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3130-00-084-7530
Primary Part Number4D2156
Item NameBearing Unit,plain
FSC / FSG3130 / 31 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Features ProvidedREMOVABLE LINER
MaterialSTEEL OVERALL
Bore Diameter2.0000 INCHES MINIMUM AND 2.0006 INCHES MAXIMUM IN
Alignment TypeRIGID
Housing Length2.3800 INCHES MINIMUM AND 2.3980 INCHES MAXIMUM IN
Load Capability TypeRADIAL AND THRUST
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-100-0257202076 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Acf Industries Inc
Cross-Reference Index
Part NumberManufacturer
4D2156 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
3110-00-100-0257INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
202076

Frequently Asked Questions

What is NSN 3130-00-084-7530?

NSN 3130-00-084-7530 is a Bearing Unit,plain, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3130 (No Item Name Available). Status: active.

What are the part numbers for NSN 3130-00-084-7530?

NSN 3130-00-084-7530 has 1 cross-referenced part number: 4D2156 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 3130-00-084-7530?

There is 1 known substitute for 3130-00-084-7530: 3110-00-100-0257. Verify interchangeability with system specifications before substitution.

What are the specifications of 4D2156?

Key specifications for 4D2156: Features Provided: REMOVABLE LINER; Material: STEEL OVERALL; Bore Diameter: 2.0000 INCHES MINIMUM AND 2.0006 INCHES MAXIMUM IN; Alignment Type: RIGID. 6 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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