PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9509Gear,spur

Cummins Inc. · NSN 3020-00-239-3877 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-239-3877 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-239-3877. Primary manufacturer part number: 9509.
Features
  • Gear,spur — FSC 3020
  • Teeth Quantity: 14
  • Material Document and Classification: SAE 4119 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Bore Style: PLAIN BOTH ENDS
  • Tooth Form: STANDARD
  • Face Nominal Width: 0.3745 INCHES IN
  • Nominal Outside Diameter: 1.5995 INCHES IN
  • Pressure Angle: 14.5000 DEGREES
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4119 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-239-3877, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-239-3877
Primary Part Number9509
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
Teeth Quantity14
Material Document and ClassificationSAE 4119 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Bore StylePLAIN BOTH ENDS
Tooth FormSTANDARD
Face Nominal Width0.3745 INCHES IN
Nominal Outside Diameter1.5995 INCHES IN
Pressure Angle14.5000 DEGREES
MaterialSTEEL COMP 4119 OVERALL
Bore Nominal Diameter0.624 INCHES BOTH ENDS IN
Body StylePLAIN, SOLID
Style DesignatorHUBLESS
Pitch Diameter1.4000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
3110-00-107-7556 INTERCHANGEABLE
Bearing,ball,annular
6105-00-463-7373 INTERCHANGEABLE
Parts Kit,electric Motor
2920-00-801-479046200-003-07 INTERCHANGEABLE
Lock,ignition
Terex Usa, Llc Dba Terex Equipment Services
6130-00-852-62789509 INTERCHANGEABLE
Rectifier Assembly,metallic
Rapid Power Technologies Inc
1650-01-109-27849509 INTERCHANGEABLE
Cap
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5998-01-368-95489509 INTERCHANGEABLE
Circuit Card Assembly
Hose-Mccann Telephone Co, Inc
3040-01-490-1512 INTERCHANGEABLE
Wheel Assembly,5th
Cross-Reference Index
Part NumberManufacturer
H9509 Cummins Inc. (USA)
9509 La Gary Co (USA)
9509 PRIMARY Cummins Inc. (USA)
Related Parts
3110-00-107-7556INTERCHANGEABLE
BEARING,BALL,ANNULAR
6105-00-463-7373INTERCHANGEABLE
PARTS KIT,ELECTRIC MOTOR
2920-00-801-4790INTERCHANGEABLE
LOCK,IGNITION
46200-003-07
6130-00-852-6278INTERCHANGEABLE
RECTIFIER ASSEMBLY,METALLIC
9509
1650-01-109-2784INTERCHANGEABLE
CAP
9509
5998-01-368-9548INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
9509
3040-01-490-1512INTERCHANGEABLE
WHEEL ASSEMBLY,5TH

Frequently Asked Questions

What is NSN 3020-00-239-3877?

NSN 3020-00-239-3877 is a Gear,spur, manufactured by Cummins Inc., classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-239-3877?

NSN 3020-00-239-3877 has 3 cross-referenced part numbers: H9509 (Cummins Inc.), 9509 (La Gary Co), 9509 (Cummins Inc.).

What NSN replaces 3020-00-239-3877?

There are 7 known substitutes for 3020-00-239-3877: 3110-00-107-7556, 6105-00-463-7373, 2920-00-801-4790 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9509?

Key specifications for 9509: Teeth Quantity: 14; Material Document and Classification: SAE 4119 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Bore Style: PLAIN BOTH ENDS; Tooth Form: STANDARD. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-239-3877 still in active supply?

NSN 3020-00-239-3877 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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