PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

646-4CBearing,roller,cylindrical

Columbus Mckinnon Corp Cm Hoist Div · NSN 3110-01-344-2040 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-344-2040 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-344-2040. Primary manufacturer part number: 646-4C.
Features
  • Bearing,roller,cylindrical — FSC 3110
  • 2 verified cross-references
  • Primary manufacturer: Columbus Mckinnon Corp Cm Hoist Div
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,roller,cylindrical, cataloged under National Stock Number 3110-01-344-2040, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Columbus Mckinnon Corp Cm Hoist Div. This item has 2 commercial cross-references 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.

Catalog Facts
Item NameBearing,roller,cylindrical
FSC / FSG3110 — No Item Name Available (FSG 31)
ManufacturersColumbus Mckinnon Corp Cm Hoist Div (CAGE 12128)
Technical Specifications
ParameterValue
NSN3110-01-344-2040
Primary Part Number646-4C
Item NameBearing,roller,cylindrical
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerColumbus Mckinnon Corp Cm Hoist Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6105-01-193-887688444 INTERCHANGEABLE
Motor,alternating Current
Tuthill Corporation Dba Tuthill Pump Group
Cross-Reference Index
Part NumberManufacturer
646-4C Columbus Mckinnon Corp Cm Hoist Div (USA)
88444 Columbus Mckinnon Corp Cm Hoist Div (USA)
Related Parts
6105-01-193-8876INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
88444

Frequently Asked Questions

What is NSN 3110-01-344-2040?

NSN 3110-01-344-2040 is a Bearing,roller,cylindrical, manufactured by Columbus Mckinnon Corp Cm Hoist Div, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-344-2040?

NSN 3110-01-344-2040 has 2 cross-referenced part numbers: 646-4C (Columbus Mckinnon Corp Cm Hoist Div), 88444 (Columbus Mckinnon Corp Cm Hoist Div).

What NSN replaces 3110-01-344-2040?

There is 1 known substitute for 3110-01-344-2040: 6105-01-193-8876. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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