PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9180-9121Bearing,roller,tapered

The Timken Corporation · NSN 3110-00-100-5799 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-100-5799 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-5799. Primary manufacturer part number: 9180-9121.
Features
  • Bearing,roller,tapered — FSC 3110
  • Cup Width: 1.2500 INCHES NOMINAL IN
  • Cone Corner Radius: 0.1400 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Style Designator: STRAIGHT BORE, STEEP ANGLE
  • Standout Width: 0.6250 INCHES NOMINAL IN
  • Backface Corner Radius: 0.1250 INCHES NOMINAL IN
  • Bore Diameter: 2.4375 INCHES NOMINAL IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,roller,tapered, cataloged under National Stock Number 3110-00-100-5799, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 6 manufacturers, 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
NSN3110-00-100-5799
Primary Part Number9180-9121
Item NameBearing,roller,tapered
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
Cup Width1.2500 INCHES NOMINAL IN
Cone Corner Radius0.1400 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Style DesignatorSTRAIGHT BORE, STEEP ANGLE
Standout Width0.6250 INCHES NOMINAL IN
Backface Corner Radius0.1250 INCHES NOMINAL IN
Bore Diameter2.4375 INCHES NOMINAL IN
Overall Outside Diameter6.0000 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA CLASS 2
Cone Width1.8125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5805-00-023-3879 INTERCHANGEABLE
Equalizer,telephone Line
Cross-Reference Index
Part NumberManufacturer
5X9180-9121 G & W Electric Co Dba G & W Electric Specialty Co (USA)
NP71921ESPC80 Capitol Gears Inc
NP71921ESPC80 Hercules Engine Co Inc (USA)
EC6701PCEC6725 Capitol Gears Inc
9180AND9121 The Timken Corporation (USA)
NP71922ESPC80 Hercules Engine Co Inc (USA)
EC6725 Capitol Gears Inc
NP71922ESPC80 Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
NP71921ESPC80 Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
NP71922ESPC80 Capitol Gears Inc
NP71920ESPC80 Capitol Gears Inc
55X9180912 Garwood/feller Inc Garwood Winch Div (USA)
12912A Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
9180AND9121 Capitol Gears Inc
12912A Hercules Engine Co Inc (USA)
NP71920ESPC80 Hercules Engine Co Inc (USA)
55X9180-9121 Garwood/feller Inc Garwood Winch Div (USA)
NP71920ESPC80 Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
9180-9121 PRIMARY The Timken Corporation (USA)
Related Parts
5805-00-023-3879INTERCHANGEABLE
EQUALIZER,TELEPHONE LINE

Frequently Asked Questions

What is NSN 3110-00-100-5799?

NSN 3110-00-100-5799 is a Bearing,roller,tapered, manufactured by The Timken Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-100-5799?

NSN 3110-00-100-5799 has 19 cross-referenced part numbers: 5X9180-9121 (G & W Electric Co Dba G & W Electric Specialty Co), NP71921ESPC80 (Capitol Gears Inc), NP71921ESPC80 (Hercules Engine Co Inc), EC6701PCEC6725 (Capitol Gears Inc), 9180AND9121 (The Timken Corporation) and 14 more.

What NSN replaces 3110-00-100-5799?

There is 1 known substitute for 3110-00-100-5799: 5805-00-023-3879. Verify interchangeability with system specifications before substitution.

What are the specifications of 9180-9121?

Key specifications for 9180-9121: Cup Width: 1.2500 INCHES NOMINAL IN; Cone Corner Radius: 0.1400 INCHES NOMINAL IN; Material: STEEL OVERALL; Overall Width: 1.8750 INCHES NOMINAL IN. 11 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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