PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16D4125Bearing,washer,thrust

Fairbanks Morse, Llc · NSN 3120-00-417-1538 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-417-1538 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-417-1538. Primary manufacturer part number: 16D4125.
Features
  • Bearing,washer,thrust — FSC 3120
  • Material: COPPER ALLOY 836 OUTER LAYER
  • Style Designator: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Lubrication Feature: GROOVE FLAT BEARING SURFACE
  • Material: TIN INNER LAYER
  • Overall Thickness: 0.4950 INCHES MINIMUM AND 0.4970 INCHES MAXIMUM IN
  • Diameter: 4.2500 INCHES NOMINAL IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Structural fastening and assembly
  • Equipment mounting
General Description

The Bearing,washer,thrust, cataloged under National Stock Number 3120-00-417-1538, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Fairbanks Morse, Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 2 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
NSN3120-00-417-1538
Primary Part Number16D4125
Item NameBearing,washer,thrust
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerFairbanks Morse, Llc
StatusACTIVE
MaterialCOPPER ALLOY 836 OUTER LAYER
Style DesignatorROUND
Cross-Sectional Shape StyleRECTANGULAR
Lubrication FeatureGROOVE FLAT BEARING SURFACE
MaterialTIN INNER LAYER
Overall Thickness0.4950 INCHES MINIMUM AND 0.4970 INCHES MAXIMUM IN
Diameter4.2500 INCHES NOMINAL IN
Outside Diameter6.6120 INCHES MINIMUM AND 6.6160 INCHES MAXIMUM IN
Corner ShapeSQUARE ALL CORNERS
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3120-00-330-9941SC-B-69494 INTERCHANGEABLE
Bearing Set,sleeve
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
16D4125-1 Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
16D4125 Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
16D4125-1 Fairbanks Morse, Llc (USA)
32N757PC18 Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
32N757PC18 Fairbanks Morse, Llc (USA)
51644A Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
16D4125 PRIMARY Fairbanks Morse, Llc (USA)
51644A Fairbanks Morse, Llc (USA)
Related Parts
3120-00-330-9941INTERCHANGEABLE
BEARING SET,SLEEVE
SC-B-69494

Frequently Asked Questions

What is NSN 3120-00-417-1538?

NSN 3120-00-417-1538 is a Bearing,washer,thrust, manufactured by Fairbanks Morse, Llc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-417-1538?

NSN 3120-00-417-1538 has 8 cross-referenced part numbers: 16D4125-1 (Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco), 16D4125 (Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco), 16D4125-1 (Fairbanks Morse, Llc), 32N757PC18 (Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco), 32N757PC18 (Fairbanks Morse, Llc) and 3 more.

What NSN replaces 3120-00-417-1538?

There is 1 known substitute for 3120-00-417-1538: 3120-00-330-9941. Verify interchangeability with system specifications before substitution.

What are the specifications of 16D4125?

Key specifications for 16D4125: Material: COPPER ALLOY 836 OUTER LAYER; Style Designator: ROUND; Cross-Sectional Shape Style: RECTANGULAR; Lubrication Feature: GROOVE FLAT BEARING SURFACE. 10 total characteristics are documented in the Federal Logistics Information System.

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