PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66520Cup,tapered Roller Bearing

The Timken Corporation · NSN 3110-00-100-0609 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-100-0609 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-0609. Primary manufacturer part number: 66520.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Backface Corner Radius: 0.1250 INCHES NOMINAL IN
  • Style Designator: NORMAL ANGLE
  • Material: STEEL OVERALL
  • Outside Diameter: 4.8125 INCHES NOMINAL IN
  • 9 verified cross-references
  • Primary manufacturer: The Timken Corporation
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-100-0609, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is The Timken Corporation. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-100-0609
Primary Part Number66520
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusCANCELLED
Standard Tolerance DesignationAFBMA CLASS 2
Backface Corner Radius0.1250 INCHES NOMINAL IN
Style DesignatorNORMAL ANGLE
MaterialSTEEL OVERALL
Outside Diameter4.8125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
1650-00-736-4404 INTERCHANGEABLE
Piston,linear Actuating Cylinder
2530-00-870-4491533571C91 INTERCHANGEABLE
Evaporator,air Brake System
Dressta North America Ltd
5910-00-953-5128178840 INTERCHANGEABLE
Capacitor
Telemechanics Inc
Cross-Reference Index
Part NumberManufacturer
178840 General Motors Corp (USA)
0BT66520 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
675259 Clark Equipment Co (USA)
66520 PRIMARY The Timken Corporation (USA)
66520 PRIMARY Meritor Heavy Vehicle Systems, Llc (USA)
007-675259 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
675259 Dana Off Highway Products, Llc (USA)
706931 Army Weapons Command Attn Amswe-Ree-S (USA)
304 252 C1 Navistar International Corporation Dba Navistar (USA)
Related Parts
1650-00-736-4404INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
2530-00-870-4491INTERCHANGEABLE
EVAPORATOR,AIR BRAKE SYSTEM
533571C91
5910-00-953-5128INTERCHANGEABLE
CAPACITOR
178840

Frequently Asked Questions

What is NSN 3110-00-100-0609?

NSN 3110-00-100-0609 is a Cup,tapered Roller Bearing, manufactured by The Timken Corporation, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-100-0609?

NSN 3110-00-100-0609 has 9 cross-referenced part numbers: 178840 (General Motors Corp), 0BT66520 (Lift Parts Mfg Co Inc Div of Echlin Mfg Co the), 675259 (Clark Equipment Co), 66520 (The Timken Corporation), 66520 (Meritor Heavy Vehicle Systems, Llc) and 4 more.

What NSN replaces 3110-00-100-0609?

There are 3 known substitutes for 3110-00-100-0609: 1650-00-736-4404, 2530-00-870-4491, 5910-00-953-5128. Verify interchangeability with system specifications before substitution.

What are the specifications of 66520?

Key specifications for 66520: Standard Tolerance Designation: AFBMA CLASS 2; End Item Identification: HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS); Backface Corner Radius: 0.1250 INCHES NOMINAL IN; Special Features: STEEP ANGLE. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-100-0609 still in active supply?

NSN 3110-00-100-0609 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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