PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H9508Gear,spur

Cummins Inc. · NSN 3020-00-239-3878 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-239-3878 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-239-3878. Primary manufacturer part number: H9508.
Features
  • Gear,spur — FSC 3020
  • Teeth Quantity: 14
  • Pitch Diameter: 1.4000 INCHES NOMINAL IN
  • Body Style: PLAIN, SOLID
  • Style Designator: HUBLESS
  • Bore Nominal Diameter: 0.624 INCHES BOTH ENDS IN
  • Face Nominal Width: 0.500 INCHES IN
  • Nominal Outside Diameter: 1.599 INCHES IN
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 3020-00-239-3878, 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 11 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-239-3878
Primary Part NumberH9508
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
Teeth Quantity14
Pitch Diameter1.4000 INCHES NOMINAL IN
Body StylePLAIN, SOLID
Style DesignatorHUBLESS
Bore Nominal Diameter0.624 INCHES BOTH ENDS IN
Face Nominal Width0.500 INCHES IN
Nominal Outside Diameter1.599 INCHES IN
MaterialSTEEL COMP 4119 OVERALL
Bore StylePLAIN BOTH ENDS
Material Document and ClassificationSAE 4119 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Pressure Angle14.5000 DEGREES
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
3110-00-107-7555 INTERCHANGEABLE
Bearing,ball,annular
3040-00-510-92529508 INTERCHANGEABLE
Shaft,shouldered
Beseler, Charles Co Inc
4320-00-773-75949508 INTERCHANGEABLE
Impeller,pump,centrifugal
Coffin Turbo Pump Inc
5315-00-877-50249508 INTERCHANGEABLE
Pin,clutch Shoe
General Electric Company
5915-00-919-00129992193 INTERCHANGEABLE
Network,pulse Forming
Us Army Aviation and Missile Command
2530-01-066-41669-X-4 INTERCHANGEABLE
Arm,center Steering
Pdi Ground Support Systems, Inc.
6145-01-159-8628CIT 4130 INTERCHANGEABLE
Cable,special Purpose,electrical
Cableco Inc
2530-01-163-73409508 INTERCHANGEABLE
Tank,pressure
Overhill Mfg Inc
3040-01-490-1540 INTERCHANGEABLE
Axle,rear
6145-01-570-14959508 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
Cross-Reference Index
Part NumberManufacturer
9508 La Gary Co (USA)
H9508 PRIMARY Cummins Inc. (USA)
9508 PRIMARY Cummins Inc. (USA)
Related Parts
3110-00-107-7555INTERCHANGEABLE
BEARING,BALL,ANNULAR
3040-00-510-9252INTERCHANGEABLE
SHAFT,SHOULDERED
9508
4320-00-773-7594INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
9508
5315-00-877-5024INTERCHANGEABLE
PIN,CLUTCH SHOE
9508
5915-00-919-0012INTERCHANGEABLE
NETWORK,PULSE FORMING
9992193
2530-01-066-4166INTERCHANGEABLE
ARM,CENTER STEERING
9-X-4
6145-01-159-8628INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
CIT 4130
2530-01-163-7340INTERCHANGEABLE
TANK,PRESSURE
9508
3040-01-490-1540INTERCHANGEABLE
AXLE,REAR
6145-01-570-1495INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
9508

Frequently Asked Questions

What is NSN 3020-00-239-3878?

NSN 3020-00-239-3878 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 3020-00-239-3878?

NSN 3020-00-239-3878 has 3 cross-referenced part numbers: 9508 (La Gary Co), H9508 (Cummins Inc.), 9508 (Cummins Inc.).

What NSN replaces 3020-00-239-3878?

There are 10 known substitutes for 3020-00-239-3878: 3110-00-107-7555, 3040-00-510-9252, 4320-00-773-7594 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H9508?

Key specifications for H9508: Teeth Quantity: 14; Pitch Diameter: 1.4000 INCHES NOMINAL IN; Body Style: PLAIN, SOLID; Style Designator: HUBLESS. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-239-3878 still in active supply?

NSN 3020-00-239-3878 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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