PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L521910Cup,tapered Roller Bearing

The Timken Corporation · NSN 3110-00-151-8384 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-151-8384 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-151-8384. Primary manufacturer part number: L521910.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Outside Diameter: 5.7500 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Backface Corner Radius: 0.0620 INCHES NOMINAL IN
  • Style Designator: NORMAL ANGLE
  • 8 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 3110-00-151-8384, 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 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-151-8384
Primary Part NumberL521910
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusCANCELLED
Outside Diameter5.7500 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Standard Tolerance DesignationAFBMA CLASS 2
Backface Corner Radius0.0620 INCHES NOMINAL IN
Style DesignatorNORMAL ANGLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
3110-00-100-060564700 INTERCHANGEABLE
Cup,tapered Roller Bearing
Rbc Bearings Incorporated Div West Trenton Division
5950-00-491-3844 INTERCHANGEABLE
Saturable Reactor
1270-00-674-803852190 INTERCHANGEABLE
Tube Assembly,strip Actuator Tor
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
4720-01-043-6789SAE-20/2ECLT-A-559X38 INTERCHANGEABLE
Hose,nonmetallic
Sae International Dba Sae International
5865-01-134-9494521910 INTERCHANGEABLE
Head Assembly
Sypris Electronics, Llc
4720-01-280-23055219-10 INTERCHANGEABLE
Hose,nonmetallic
Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
6160-01-394-7136 INTERCHANGEABLE
Retainer,battery
Cross-Reference Index
Part NumberManufacturer
52190 The Timken Corporation (USA)
712057 Army Weapons Command Attn Amswe-Ree-S (USA)
317700C1 International Harvester Co Agricultural Equipment Div (USA)
521910 The Timken Corporation (USA)
L521910 PRIMARY The Timken Corporation (USA)
317700C1 Navistar International Corporation Dba Navistar (USA)
CB1-521910 Flowserve Corp Dba Automax Actuators Div Flowserve Us Company (USA)
3110001518384 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
Related Parts
3110-00-100-0605INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
64700
5950-00-491-3844INTERCHANGEABLE
SATURABLE REACTOR
1270-00-674-8038INTERCHANGEABLE
TUBE ASSEMBLY,STRIP ACTUATOR TOR
52190
4720-01-043-6789INTERCHANGEABLE
HOSE,NONMETALLIC
SAE-20/2ECLT-A-559X38
5865-01-134-9494INTERCHANGEABLE
HEAD ASSEMBLY
521910
4720-01-280-2305INTERCHANGEABLE
HOSE,NONMETALLIC
5219-10
6160-01-394-7136INTERCHANGEABLE
RETAINER,BATTERY

Frequently Asked Questions

What is NSN 3110-00-151-8384?

NSN 3110-00-151-8384 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 3110-00-151-8384?

NSN 3110-00-151-8384 has 8 cross-referenced part numbers: 52190 (The Timken Corporation), 712057 (Army Weapons Command Attn Amswe-Ree-S), 317700C1 (International Harvester Co Agricultural Equipment Div), 521910 (The Timken Corporation), L521910 (The Timken Corporation) and 3 more.

What NSN replaces 3110-00-151-8384?

There are 7 known substitutes for 3110-00-151-8384: 3110-00-100-0605, 5950-00-491-3844, 1270-00-674-8038 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L521910?

Key specifications for L521910: Outside Diameter: 5.7500 INCHES NOMINAL IN; Overall Width: 0.6563 INCHES NOMINAL IN; Material: STEEL OVERALL; Standard Tolerance Designation: AFBMA CLASS 2. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-151-8384 still in active supply?

NSN 3110-00-151-8384 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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