PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

64A11-85A6-4Gear,spur

Raytheon Co · NSN 3020-00-925-4431 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-925-4431 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-925-4431. Primary manufacturer part number: 64A11-85A6-4.
Features
  • Gear,spur — FSC 3020
  • Pitch Diameter: 1.3281 INCHES NOMINAL IN
  • Precision Classification: QUALITY NUMBER 12
  • Style Designator: PROTRUDING HUB
  • Hub Nominal Diameter: 0.375 INCHES FIRST END IN
  • Bore Nominal Diameter: 0.197 INCHES BOTH ENDS IN
  • Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Nominal Distance Between Body Face and Protruding Hub End: 0.218 INCHES FIRST END 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 3020-00-925-4431, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Raytheon Co. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-925-4431
Primary Part Number64A11-85A6-4
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerRaytheon Co
StatusACTIVE
Pitch Diameter1.3281 INCHES NOMINAL IN
Precision ClassificationQUALITY NUMBER 12
Style DesignatorPROTRUDING HUB
Hub Nominal Diameter0.375 INCHES FIRST END IN
Bore Nominal Diameter0.197 INCHES BOTH ENDS IN
Surface Treatment Document and ClassificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.218 INCHES FIRST END IN
Bore StylePLAIN BOTH ENDS
Pressure Angle20.0000 DEGREES
Nominal Outside Diameter1.359 INCHES IN
Material Document and ClassificationQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialALUMINUM ALLOY 2024 OVERALL
Hub Style DesignatorPINNED FIRST END
Backlash DesignationGRADE C
Surface TreatmentANODIZE OVERALL
Face Nominal Width0.125 INCHES IN
Body StylePLAIN, SOLID
Teeth Quantity85
Tooth FormSTANDARD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3020-00-236-646864S11-56A6-4 INTERCHANGEABLE
Gear,spur
Raytheon Co
3020-00-540-773164S11-120A8-4 INTERCHANGEABLE
Gear,spur
Raytheon Co
3020-00-580-796564A11-120A6-4 INTERCHANGEABLE
Gear,spur
Raytheon Co
3020-00-618-012464H10C100A6-4 INTERCHANGEABLE
Gear,spur
Raytheon Co
3020-00-894-2389E22-48 INTERCHANGEABLE
Gear,spur
Designatronics Incorporated Div Sterling Instruments Div
3020-00-901-870064D11-22C13-4 INTERCHANGEABLE
Gear,spur
Raytheon Co
3020-00-901-9211D46S39 INTERCHANGEABLE
Gear,spur
Designatronics Inc Perfect Gear and Instrument Div
3020-00-902-7257D48S40 INTERCHANGEABLE
Gear,spur
Designatronics Inc Perfect Gear and Instrument Div
3020-00-902-862464S11-30C8-4 INTERCHANGEABLE
Gear,spur
Raytheon Co
3020-00-904-5161E618190 INTERCHANGEABLE
Gear,spur
Raytheon Co
Cross-Reference Index
Part NumberManufacturer
64A11-85A6-4 PRIMARY Raytheon Co (USA)
E618190 Raytheon Co (USA)
Related Parts
3020-00-236-6468INTERCHANGEABLE
GEAR,SPUR
64S11-56A6-4
3020-00-540-7731INTERCHANGEABLE
GEAR,SPUR
64S11-120A8-4
3020-00-580-7965INTERCHANGEABLE
GEAR,SPUR
64A11-120A6-4
3020-00-618-0124INTERCHANGEABLE
GEAR,SPUR
64H10C100A6-4
3020-00-894-2389INTERCHANGEABLE
GEAR,SPUR
E22-48
3020-00-901-8700INTERCHANGEABLE
GEAR,SPUR
64D11-22C13-4
3020-00-901-9211INTERCHANGEABLE
GEAR,SPUR
D46S39
3020-00-902-7257INTERCHANGEABLE
GEAR,SPUR
D48S40
3020-00-902-8624INTERCHANGEABLE
GEAR,SPUR
64S11-30C8-4
3020-00-904-5161INTERCHANGEABLE
GEAR,SPUR
E618190
3020-00-925-4440INTERCHANGEABLE
GEAR,SPUR
72S11-25A4-4
3020-00-944-5145INTERCHANGEABLE
GEAR,SPUR
60334-1

Frequently Asked Questions

What is NSN 3020-00-925-4431?

NSN 3020-00-925-4431 is a Gear,spur, manufactured by Raytheon Co, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-925-4431?

NSN 3020-00-925-4431 has 2 cross-referenced part numbers: 64A11-85A6-4 (Raytheon Co), E618190 (Raytheon Co).

What NSN replaces 3020-00-925-4431?

There are 12 known substitutes for 3020-00-925-4431: 3020-00-236-6468, 3020-00-540-7731, 3020-00-580-7965 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 64A11-85A6-4?

Key specifications for 64A11-85A6-4: Pitch Diameter: 1.3281 INCHES NOMINAL IN; Precision Classification: QUALITY NUMBER 12; Style Designator: PROTRUDING HUB; Hub Nominal Diameter: 0.375 INCHES FIRST END IN. 19 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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