PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

202451Bearing,washer,thrust

Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · NSN 3120-00-466-2538 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-466-2538 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-466-2538. Primary manufacturer part number: 202451.
Features
  • Bearing,washer,thrust — FSC 3120
  • Cross-Sectional Shape Style: RECTANGULAR
  • Corner Shape: SQUARE FIRST OUTSIDE CORNER
  • Lubrication Feature: GROOVE FLAT BEARING SURFACE
  • Material: COPPER ALLOY 932 OVERALL
  • Corner Shape: SQUARE SECOND OUTSIDE CORNER
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Diameter: 3.2400 INCHES MINIMUM AND 3.2430 INCHES MAXIMUM 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 3120-00-466-2538, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN3120-00-466-2538
Primary Part Number202451
Item NameBearing,washer,thrust
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerTwin Disc, Incorporated Dba Twin Disc Mid-Atlantic
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Corner ShapeSQUARE FIRST OUTSIDE CORNER
Lubrication FeatureGROOVE FLAT BEARING SURFACE
MaterialCOPPER ALLOY 932 OVERALL
Corner ShapeSQUARE SECOND OUTSIDE CORNER
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Diameter3.2400 INCHES MINIMUM AND 3.2430 INCHES MAXIMUM IN
Outside Diameter3.8000 INCHES NOMINAL IN
Style DesignatorROUND
Corner ShapeSQUARE FIRST INSIDE CORNER
Center Hole Shape StyleROUND
Overall Thickness0.1890 INCHES MINIMUM AND 0.1910 INCHES MAXIMUM IN
Corner ShapeSQUARE SECOND INSIDE CORNER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2915-00-073-573220245-1 INTERCHANGEABLE
Casing Assembly
Triumph Controls, Llc Dba Triumph Controls, Llc
5998-00-082-322520245-1 INTERCHANGEABLE
Circuit Card Assembly
Rockwell Collins, Inc. Dba Rc Displays Systems
2240-00-418-7204 INTERCHANGEABLE
Shaft
5930-00-642-91888370K107 INTERCHANGEABLE
Switch,toggle
Eaton Electrical Inc. Dba Cuttler Hmmer Cmrcl Cntrls Div Div Vehicle Controls Business Unit
3120-00-661-9328202451 INTERCHANGEABLE
Bearing,sleeve
Renk America Llc Div Renk America
6610-00-724-6691 INTERCHANGEABLE
Cover,glass
4320-01-321-695420245-1 INTERCHANGEABLE
Adapter,pump to Motor
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
Cross-Reference Index
Part NumberManufacturer
34182 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
202451 PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
Related Parts
2915-00-073-5732INTERCHANGEABLE
CASING ASSEMBLY
20245-1
5998-00-082-3225INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
20245-1
2240-00-418-7204INTERCHANGEABLE
SHAFT
5930-00-642-9188INTERCHANGEABLE
SWITCH,TOGGLE
8370K107
3120-00-661-9328INTERCHANGEABLE
BEARING,SLEEVE
202451
6610-00-724-6691INTERCHANGEABLE
COVER,GLASS
4320-01-321-6954INTERCHANGEABLE
ADAPTER,PUMP TO MOTOR
20245-1

Frequently Asked Questions

What is NSN 3120-00-466-2538?

NSN 3120-00-466-2538 is a Bearing,washer,thrust, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-466-2538?

NSN 3120-00-466-2538 has 2 cross-referenced part numbers: 34182 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.), 202451 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).

What NSN replaces 3120-00-466-2538?

There are 7 known substitutes for 3120-00-466-2538: 2915-00-073-5732, 5998-00-082-3225, 2240-00-418-7204 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 202451?

Key specifications for 202451: Cross-Sectional Shape Style: RECTANGULAR; Corner Shape: SQUARE FIRST OUTSIDE CORNER; Lubrication Feature: GROOVE FLAT BEARING SURFACE; Material: COPPER ALLOY 932 OVERALL. 14 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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