PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18723Cup,tapered Roller Bearing

The Timken Corporation · NSN 3110-00-277-0120 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-277-0120 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-277-0120. Primary manufacturer part number: 18723.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Outside Diameter: 3.5000 INCHES NOMINAL IN
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Backface Corner Radius: 0.0460 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Style Designator: NORMAL ANGLE
  • 3 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 3110-00-277-0120, 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 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-277-0120
Primary Part Number18723
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
Outside Diameter3.5000 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA CLASS 2
Backface Corner Radius0.0460 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Style DesignatorNORMAL ANGLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-566-6746624536 INTERCHANGEABLE
Transformer,pulse
Lockheed Martin Corporation Div Rms - Mitchel Field
5935-00-590-21822609677-2 INTERCHANGEABLE
Connector,receptacle,electrical
Alliant Techsystems Operations Llc Div Defense Electronic Systems
5970-00-727-971018723 INTERCHANGEABLE
Insulator,standoff
Ward Leonard Ct Llc
1630-00-779-0407 INTERCHANGEABLE
Rod,push
2990-01-173-471918723 INTERCHANGEABLE
Control Assembly,push-Pull
Terex Reedrill Dba Reedrill Texoma Div Terex Mining
4930-01-223-37301151-014 INTERCHANGEABLE
Pump,lubricant Transfer
Balcrank Products Inc
6240-01-480-199718723 INTERCHANGEABLE
Lamp,fluorescent
Technical Consumer Products, Inc.
Cross-Reference Index
Part NumberManufacturer
16346 PIECE 406 Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA)
18723 PRIMARY The Timken Corporation (USA)
649155 Am General Llc (USA)
Related Parts
5950-00-566-6746INTERCHANGEABLE
TRANSFORMER,PULSE
624536
5935-00-590-2182INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
2609677-2
5970-00-727-9710INTERCHANGEABLE
INSULATOR,STANDOFF
18723
1630-00-779-0407INTERCHANGEABLE
ROD,PUSH
2990-01-173-4719INTERCHANGEABLE
CONTROL ASSEMBLY,PUSH-PULL
18723
4930-01-223-3730INTERCHANGEABLE
PUMP,LUBRICANT TRANSFER
1151-014
6240-01-480-1997INTERCHANGEABLE
LAMP,FLUORESCENT
18723

Frequently Asked Questions

What is NSN 3110-00-277-0120?

NSN 3110-00-277-0120 is a Cup,tapered Roller Bearing, manufactured by The Timken Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-277-0120?

NSN 3110-00-277-0120 has 3 cross-referenced part numbers: 16346 PIECE 406 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine), 18723 (The Timken Corporation), 649155 (Am General Llc).

What NSN replaces 3110-00-277-0120?

There are 7 known substitutes for 3110-00-277-0120: 5950-00-566-6746, 5935-00-590-2182, 5970-00-727-9710 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18723?

Key specifications for 18723: Outside Diameter: 3.5000 INCHES NOMINAL IN; Standard Tolerance Designation: AFBMA CLASS 2; Overall Width: 0.6563 INCHES NOMINAL IN; Backface Corner Radius: 0.0460 INCHES NOMINAL IN. 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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