PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12043Gear,spur

Cae Usa Inc. · NSN 3020-00-186-6118 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-186-6118 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-186-6118. Primary manufacturer part number: 12043.
Features
  • Gear,spur — FSC 3020
  • Body Style: PLAIN, SOLID
  • Style Designator: PROTRUDING HUB
  • Hub Nominal Diameter: 0.500 INCHES FIRST END IN
  • Bore Nominal Diameter: 0.251 INCHES BOTH ENDS IN
  • Nominal Distance Between Body Face and Protruding Hub End: 0.250 INCHES FIRST END IN
  • Face Nominal Width: 0.125 INCHES IN
  • Tooth Form: STANDARD
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Copper Alloy Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-186-6118, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Cae Usa Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-186-6118
Primary Part Number12043
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCae Usa Inc.
StatusCANCELLED
Body StylePLAIN, SOLID
Style DesignatorPROTRUDING HUB
Hub Nominal Diameter0.500 INCHES FIRST END IN
Bore Nominal Diameter0.251 INCHES BOTH ENDS IN
Nominal Distance Between Body Face and Protruding Hub End0.250 INCHES FIRST END IN
Face Nominal Width0.125 INCHES IN
Tooth FormSTANDARD
Nominal Outside Diameter1.554 INCHES IN
Bore StylePLAIN BOTH ENDS
Hub Style DesignatorPLAIN FIRST END
Pressure Angle20.0000 DEGREES
MaterialCOPPER ALLOY OVERALL
Pitch Diameter1.5000 INCHES NOMINAL IN
Teeth Quantity72
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5120-00-223-95581204-3 INTERCHANGEABLE
Extractor,stuffing Box and Pump
C. S. Osborne and Company Dba Cs Osborne & Co
5950-00-351-5597 INTERCHANGEABLE
Coil,radio Frequency
3020-00-358-0099104-0084 INTERCHANGEABLE
Sprocket Wheel
Cummins Power Generation Inc.
6515-00-514-1412 INTERCHANGEABLE
Needle,hypodermic
4730-00-557-9777 INTERCHANGEABLE
Adapter,straight,tube to Hose
2520-00-670-3833165264 INTERCHANGEABLE
Pressure Plate Assembly,clutch
Rockford Powertrain Inc Div Powertrain Rockford, Inc.
5985-00-931-9106120-43 INTERCHANGEABLE
Base,antenna Support
Shakespeare Company, Llc Div Military Electronics
5910-01-110-0455 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Cross-Reference Index
Part NumberManufacturer
12043 PRIMARY Cae Usa Inc. (USA)
12043 Raytheon Technical Services Company (USA)
P34100048 PRIMARY Entron Industries Limited Partnership Dba Entron Industries Property Div (USA)
5110-37 El-Tronics Inc Solar Electric Div (USA)
L74400 Remler Co (USA)
8192317 PRIMARY Us Army Aviation and Missile Command (USA)
165-317 PRIMARY Cae Usa Inc. (USA)
Related Parts
5120-00-223-9558INTERCHANGEABLE
EXTRACTOR,STUFFING BOX AND PUMP
1204-3
5950-00-351-5597INTERCHANGEABLE
COIL,RADIO FREQUENCY
3020-00-358-0099INTERCHANGEABLE
SPROCKET WHEEL
104-0084
6515-00-514-1412INTERCHANGEABLE
NEEDLE,HYPODERMIC
4730-00-557-9777INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
2520-00-670-3833INTERCHANGEABLE
PRESSURE PLATE ASSEMBLY,CLUTCH
165264
5985-00-931-9106INTERCHANGEABLE
BASE,ANTENNA SUPPORT
120-43
5910-01-110-0455INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR

Frequently Asked Questions

What is NSN 3020-00-186-6118?

NSN 3020-00-186-6118 is a Gear,spur, manufactured by Cae Usa Inc., classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-186-6118?

NSN 3020-00-186-6118 has 7 cross-referenced part numbers: 12043 (Cae Usa Inc.), 12043 (Raytheon Technical Services Company), P34100048 (Entron Industries Limited Partnership Dba Entron Industries Property Div), 5110-37 (El-Tronics Inc Solar Electric Div), L74400 (Remler Co) and 2 more.

What NSN replaces 3020-00-186-6118?

There are 8 known substitutes for 3020-00-186-6118: 5120-00-223-9558, 5950-00-351-5597, 3020-00-358-0099 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12043?

Key specifications for 12043: Body Style: PLAIN, SOLID; Style Designator: PROTRUDING HUB; Hub Nominal Diameter: 0.500 INCHES FIRST END IN; Bore Nominal Diameter: 0.251 INCHES BOTH ENDS IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-186-6118 still in active supply?

NSN 3020-00-186-6118 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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