PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7548Bearing,washer,thrust

Eaton Corp Transmission Div · NSN 3120-00-661-4120 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-661-4120 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-661-4120. Primary manufacturer part number: 7548.
Features
  • Bearing,washer,thrust — FSC 3120
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: STEEL COMP 8620 OVERALL
  • Corner Shape: SQUARE ALL CORNERS
  • Lubrication Feature: GROOVE FLAT BEARING SURFACE
  • Style Designator: ROUND
  • Surface Condition: GROUND
  • Overall Thickness: 0.3100 INCHES MINIMUM AND 0.3120 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 3120-00-661-4120, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Eaton Corp Transmission Div. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-661-4120
Primary Part Number7548
Item NameBearing,washer,thrust
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerEaton Corp Transmission Div
StatusCANCELLED
Cross-Sectional Shape StyleRECTANGULAR
MaterialSTEEL COMP 8620 OVERALL
Corner ShapeSQUARE ALL CORNERS
Lubrication FeatureGROOVE FLAT BEARING SURFACE
Style DesignatorROUND
Surface ConditionGROUND
Overall Thickness0.3100 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN
Diameter2.5680 INCHES MINIMUM AND 2.5730 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5935-00-259-0823CO731 INTERCHANGEABLE
Connector,plug,electrical
Grimes Aerospace Company
5905-00-789-75397548 INTERCHANGEABLE
Resistor-Swtich Ass
Electro Scientific Industries Inc
3020-01-203-9891 INTERCHANGEABLE
Gear Intermediate
6230-01-356-811113964 INTERCHANGEABLE
Searchlight
Carlisle & Finch Co
Cross-Reference Index
Part NumberManufacturer
7548 Eaton Corp Transmission Div (USA)
2274118 Euclid Inc (USA)
8333389 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
104245R1 Navistar International Corporation Dba Navistar (USA)
104245R1 Navistar Intl Corp Truck Br Ohio Plant (USA)
Related Parts
5935-00-259-0823INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
CO731
5905-00-789-7539INTERCHANGEABLE
RESISTOR-SWTICH ASS
7548
3020-01-203-9891INTERCHANGEABLE
GEAR INTERMEDIATE
6230-01-356-8111INTERCHANGEABLE
SEARCHLIGHT
13964

Frequently Asked Questions

What is NSN 3120-00-661-4120?

NSN 3120-00-661-4120 is a Bearing,washer,thrust, manufactured by Eaton Corp Transmission Div, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-661-4120?

NSN 3120-00-661-4120 has 5 cross-referenced part numbers: 7548 (Eaton Corp Transmission Div), 2274118 (Euclid Inc), 8333389 (U S Army Tank Automotive Command Amsta-Im-Mm), 104245R1 (Navistar International Corporation Dba Navistar), 104245R1 (Navistar Intl Corp Truck Br Ohio Plant).

What NSN replaces 3120-00-661-4120?

There are 4 known substitutes for 3120-00-661-4120: 5935-00-259-0823, 5905-00-789-7539, 3020-01-203-9891 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7548?

Key specifications for 7548: Cross-Sectional Shape Style: RECTANGULAR; Material: STEEL COMP 8620 OVERALL; Corner Shape: SQUARE ALL CORNERS; Lubrication Feature: GROOVE FLAT BEARING SURFACE. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-661-4120 still in active supply?

NSN 3120-00-661-4120 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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