PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

450141Gear,spur

Bae Systems Information and Electronic Systems Integration Inc. · NSN 3020-00-937-8473 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-937-8473 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-937-8473. Primary manufacturer part number: 450141.
Features
  • Gear,spur — FSC 3020
  • Style Designator: HUBLESS
  • Nominal Outside Diameter: 2.563 INCHES IN
  • Pitch Diameter: 2.5312 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 2024 OVERALL
  • Bore Nominal Diameter: 0.438 INCHES BOTH ENDS IN
  • Surface Treatment: ANODIZE OVERALL
  • Face Nominal Width: 0.120 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy 2024 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-937-8473, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN3020-00-937-8473
Primary Part Number450141
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc.
StatusACTIVE
Style DesignatorHUBLESS
Nominal Outside Diameter2.563 INCHES IN
Pitch Diameter2.5312 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 2024 OVERALL
Bore Nominal Diameter0.438 INCHES BOTH ENDS IN
Surface TreatmentANODIZE OVERALL
Face Nominal Width0.120 INCHES IN
Pressure Angle20.0000 DEGREES
Body StylePLAIN, SOLID
Material Document and ClassificationQQ-A-225/6,T351 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Backlash DesignationGRADE C
Precision ClassificationQUALITY NUMBER 10
Bore StylePLAIN BOTH ENDS
Tooth FormSTANDARD
Teeth Quantity162
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-003-928050141S INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
4320-00-110-2464 INTERCHANGEABLE
Pump,recirculation
1560-00-238-16304-5014-1 INTERCHANGEABLE
Skin,aircraft
The Boeing Company Div Legacy Wichita
Cross-Reference Index
Part NumberManufacturer
450141 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. (USA)
Related Parts
5330-00-003-9280INTERCHANGEABLE
SEAL,PLAIN ENCASED
50141S
4320-00-110-2464INTERCHANGEABLE
PUMP,RECIRCULATION
1560-00-238-1630INTERCHANGEABLE
SKIN,AIRCRAFT
4-5014-1

Frequently Asked Questions

What is NSN 3020-00-937-8473?

NSN 3020-00-937-8473 is a Gear,spur, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-937-8473?

NSN 3020-00-937-8473 has 1 cross-referenced part number: 450141 (Bae Systems Information and Electronic Systems Integration Inc.).

What NSN replaces 3020-00-937-8473?

There are 3 known substitutes for 3020-00-937-8473: 5330-00-003-9280, 4320-00-110-2464, 1560-00-238-1630. Verify interchangeability with system specifications before substitution.

What are the specifications of 450141?

Key specifications for 450141: Style Designator: HUBLESS; Nominal Outside Diameter: 2.563 INCHES IN; Pitch Diameter: 2.5312 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 2024 OVERALL. 15 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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