PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51668Bearing,roller

Eaton Aerospace, Llc Dba Jackson South · NSN 3110-00-128-7661 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-128-7661 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-128-7661. Primary manufacturer part number: 51668.
Features
  • Bearing,roller — FSC 3110
  • 3 verified cross-references
  • Primary manufacturer: Eaton Aerospace, Llc Dba Jackson South
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,roller, cataloged under National Stock Number 3110-00-128-7661, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBearing,roller
FSC / FSG3110 — No Item Name Available (FSG 31)
ManufacturersEaton Aerospace, Llc Dba Jackson South (CAGE 62983); Timken Co Div the Timken Company (CAGE 21335); Timken Aerospace, Inc Dba Torrington Product (CAGE 60380)
Technical Specifications
ParameterValue
NSN3110-00-128-7661
Primary Part Number51668
Item NameBearing,roller
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5331-00-073-815851668 INTERCHANGEABLE
O-Ring
Parker Hannifin Corporation Div Hydraulic Systems Division
6105-00-128-188551668-02 INTERCHANGEABLE
Motor-Tachometer Generator
Cae Inc
5210-00-221-1948T436FL-6 INTERCHANGEABLE
Caliper,micrometer,outside
L.s. Starrett Company (the) Div Tool Division
3040-00-392-9523SC-B-69643 INTERCHANGEABLE
Hub,body
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2590-01-049-709851668 INTERCHANGEABLE
Primary Planet Assy
Paccar Winch Inc Dba Paccar Winch Division
4330-01-210-587851668 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
Cross-Reference Index
Part NumberManufacturer
51668 PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
W1399A Timken Co Div the Timken Company (USA)
W1399A Timken Aerospace, Inc Dba Torrington Product (USA)
Related Parts
5331-00-073-8158INTERCHANGEABLE
O-RING
51668
6105-00-128-1885INTERCHANGEABLE
MOTOR-TACHOMETER GENERATOR
51668-02
5210-00-221-1948INTERCHANGEABLE
CALIPER,MICROMETER,OUTSIDE
T436FL-6
3040-00-392-9523INTERCHANGEABLE
HUB,BODY
SC-B-69643
2590-01-049-7098INTERCHANGEABLE
PRIMARY PLANET ASSY
51668
4330-01-210-5878INTERCHANGEABLE
FILTER ELEMENT,FLUID
51668

Frequently Asked Questions

What is NSN 3110-00-128-7661?

NSN 3110-00-128-7661 is a Bearing,roller, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-128-7661?

NSN 3110-00-128-7661 has 3 cross-referenced part numbers: 51668 (Eaton Aerospace, Llc Dba Jackson South), W1399A (Timken Co Div the Timken Company), W1399A (Timken Aerospace, Inc Dba Torrington Product).

What NSN replaces 3110-00-128-7661?

There are 6 known substitutes for 3110-00-128-7661: 5331-00-073-8158, 6105-00-128-1885, 5210-00-221-1948 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com