PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4494-2Gear,spur

Diesel Parts Co of California · NSN 3020-00-353-9268 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-353-9268 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-353-9268. Primary manufacturer part number: 4494-2.
Features
  • Gear,spur — FSC 3020
  • Bolt Hole Circle Nominal Diameter: 4.750 INCHES AXIALLY THROUGH HUB SECOND END IN
  • Body Style: WEBBED, OFFSET, SOLID
  • Pitch Diameter: 10.4000 INCHES NOMINAL IN
  • Body Recess Nominal Depth: 0.688 INCHES FIRST END IN
  • Body Recess Nominal Depth: 0.875 INCHES SECOND END IN
  • Pressure Angle: 14.5000 DEGREES
  • Attachment Method: MOUNTING HOLE
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4340h Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-353-9268, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Diesel Parts Co of California. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-353-9268
Primary Part Number4494-2
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerDiesel Parts Co of California
StatusCANCELLED
Bolt Hole Circle Nominal Diameter4.750 INCHES AXIALLY THROUGH HUB SECOND END IN
Body StyleWEBBED, OFFSET, SOLID
Pitch Diameter10.4000 INCHES NOMINAL IN
Body Recess Nominal Depth0.688 INCHES FIRST END IN
Body Recess Nominal Depth0.875 INCHES SECOND END IN
Pressure Angle14.5000 DEGREES
Attachment MethodMOUNTING HOLE
Bore Nominal Diameter3.5000 INCHES BOTH ENDS IN
Bore StylePLAIN BOTH ENDS
Face Nominal Width2.000 INCHES IN
Nominal Outside Diameter10.7975 INCHES IN
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Mounting Hole Type and Quantity6 COUNTERSUNK AXIALLY THROUGH HUB SECOND END
Style DesignatorHUBLESS, RECESSED BODY
MaterialSTEEL COMP 4340H OVERALL
Teeth Quantity52
Mounting Hole Nominal Diameter0.500 INCHES AXIALLY THROUGH HUB SECOND END IN
Tooth FormSTANDARD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-036-1747012-500-0007 INTERCHANGEABLE
Seat,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
6110-00-110-5380M5-148A INTERCHANGEABLE
Regulator,voltage
Transpo Electronics Inc
5330-00-160-014944942 INTERCHANGEABLE
Gasket
Raytheon Company Dba Raytheon
9540-00-542-2733 INTERCHANGEABLE
Angle,structural
3120-00-600-66495157-5 INTERCHANGEABLE
Bushing,sleeve
Goodrich Aerospace Canada Ltd
1650-00-658-80565157 INTERCHANGEABLE
Parts Kit,valve
Hydro-Aire Aerospace Corp
5360-00-663-984916-625-17 INTERCHANGEABLE
Spring,helical,compression
Automatic Switch Company Dba Asco
5331-00-684-5098 INTERCHANGEABLE
O-Ring
3820-00-783-73115157 INTERCHANGEABLE
Crusher,jaw
Eagle Crusher Co Inc Dba Stedman Machine Co
5915-00-876-662210067452 INTERCHANGEABLE
Filter,low Pass
Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
5157 Cummins Inc. (USA)
K5157 Cummins Inc. (USA)
4494-2 La Gary Co (USA)
4494-2 PRIMARY Diesel Parts Co of California (USA)
44942 Cummins Inc. (USA)
4494-2 Cummins Inc. (USA)
Related Parts
4820-00-036-1747INTERCHANGEABLE
SEAT,VALVE
012-500-0007
6110-00-110-5380INTERCHANGEABLE
REGULATOR,VOLTAGE
M5-148A
5330-00-160-0149INTERCHANGEABLE
GASKET
44942
9540-00-542-2733INTERCHANGEABLE
ANGLE,STRUCTURAL
3120-00-600-6649INTERCHANGEABLE
BUSHING,SLEEVE
5157-5
1650-00-658-8056INTERCHANGEABLE
PARTS KIT,VALVE
5157
5360-00-663-9849INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
16-625-17
5331-00-684-5098INTERCHANGEABLE
O-RING
3820-00-783-7311INTERCHANGEABLE
CRUSHER,JAW
5157
5915-00-876-6622INTERCHANGEABLE
FILTER,LOW PASS
10067452
4720-00-938-7579INTERCHANGEABLE
HOSE,AIR DUCT
5157
5120-01-146-2291INTERCHANGEABLE
REMOVAL TOOL,FUEL PROBE
A1230

Frequently Asked Questions

What is NSN 3020-00-353-9268?

NSN 3020-00-353-9268 is a Gear,spur, manufactured by Diesel Parts Co of California, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-353-9268?

NSN 3020-00-353-9268 has 6 cross-referenced part numbers: 5157 (Cummins Inc.), K5157 (Cummins Inc.), 4494-2 (La Gary Co), 4494-2 (Diesel Parts Co of California), 44942 (Cummins Inc.) and 1 more.

What NSN replaces 3020-00-353-9268?

There are 12 known substitutes for 3020-00-353-9268: 4820-00-036-1747, 6110-00-110-5380, 5330-00-160-0149 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4494-2?

Key specifications for 4494-2: Bolt Hole Circle Nominal Diameter: 4.750 INCHES AXIALLY THROUGH HUB SECOND END IN; Body Style: WEBBED, OFFSET, SOLID; Pitch Diameter: 10.4000 INCHES NOMINAL IN; Body Recess Nominal Depth: 0.688 INCHES FIRST END IN. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-353-9268 still in active supply?

NSN 3020-00-353-9268 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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