PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3Q577B3Bearing,sleeve

Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · NSN 3120-00-679-1463 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-679-1463 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-679-1463. Primary manufacturer part number: 3Q577B3.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Body Inside Diameter: 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
  • Material: COPPER ALLOY OVERALL
  • Body Outside Diameter: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • 5 verified cross-references
  • Primary manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-679-1463, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 5 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-679-1463
Primary Part Number3Q577B3
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
Body Inside Diameter0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
MaterialCOPPER ALLOY OVERALL
Body Outside Diameter0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5940-00-197-8751 INTERCHANGEABLE
Terminal,lug
3030-00-455-9309 INTERCHANGEABLE
Belts,v,matched Set
6110-01-192-2428B4652 INTERCHANGEABLE
Contactor,magnetic
Te Connectivity Corporation
Cross-Reference Index
Part NumberManufacturer
3Q577B3 Standard Mfg Co Inc (USA)
B46-5 Altra Industrial Motion Corp. (USA)
3Q577B3 PRIMARY Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
9093701 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
65C35444-1 San Antonio Air Logistics Center (USA)
Related Parts
5940-00-197-8751INTERCHANGEABLE
TERMINAL,LUG
3030-00-455-9309INTERCHANGEABLE
BELTS,V,MATCHED SET
6110-01-192-2428INTERCHANGEABLE
CONTACTOR,MAGNETIC
B4652

Frequently Asked Questions

What is NSN 3120-00-679-1463?

NSN 3120-00-679-1463 is a Bearing,sleeve, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-679-1463?

NSN 3120-00-679-1463 has 5 cross-referenced part numbers: 3Q577B3 (Standard Mfg Co Inc), B46-5 (Altra Industrial Motion Corp.), 3Q577B3 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 9093701 (U S Army Tank Automotive Command Amsta-Im-Mm), 65C35444-1 (San Antonio Air Logistics Center).

What NSN replaces 3120-00-679-1463?

There are 3 known substitutes for 3120-00-679-1463: 5940-00-197-8751, 3030-00-455-9309, 6110-01-192-2428. Verify interchangeability with system specifications before substitution.

What are the specifications of 3Q577B3?

Key specifications for 3Q577B3: Corner Shape: SQUARE ALL CORNERS; Body Inside Diameter: 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN; Material: COPPER ALLOY OVERALL; Body Outside Diameter: 0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN. 6 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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