PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

61-2-9Gear,spur

Allard Nazarian Group, Inc. Dba Granite State Manufacturing · NSN 3020-00-289-7947 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-289-7947 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-289-7947. Primary manufacturer part number: 61-2-9.
Features
  • Gear,spur — FSC 3020
  • Pitch Diameter: 11.6250 INCHES NOMINAL IN
  • Teeth Quantity: 186
  • Body Style: WEBBED, WITH LIGHTENING HOLES
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Bore Nominal Diameter: 3.4378 INCHES FIRST END IN
  • Hardness Rating: 31.0 ROCKWELL C NOMINAL OVERALL
  • Nominal Outside Diameter: 11.750 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4140 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-289-7947, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Allard Nazarian Group, Inc. Dba Granite State Manufacturing. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN3020-00-289-7947
Primary Part Number61-2-9
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerAllard Nazarian Group, Inc. Dba Granite State Manufacturing
StatusACTIVE
Pitch Diameter11.6250 INCHES NOMINAL IN
Teeth Quantity186
Body StyleWEBBED, WITH LIGHTENING HOLES
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Bore Nominal Diameter3.4378 INCHES FIRST END IN
Hardness Rating31.0 ROCKWELL C NOMINAL OVERALL
Nominal Outside Diameter11.750 INCHES IN
Style DesignatorRECESSED HUB
Hub Nominal Diameter6.000 INCHES FIRST END IN
Tooth FormSTANDARD
MaterialSTEEL COMP 4140 OVERALL
Hub Style DesignatorPLAIN FIRST END
Face Nominal Width0.500 INCHES IN
Nominal Distance Between Body Face and Recessed Hub End0.188 INCHES FIRST END IN
Pressure Angle20.0000 DEGREES
Bore StylePLAIN BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-137-8074111-046-0007 INTERCHANGEABLE
Coil,radio Frequency
Northrop Grumman Systems Corporation
5330-00-146-3154 INTERCHANGEABLE
Gasket
5355-00-162-9107 INTERCHANGEABLE
Knob
6220-00-190-6407428-R-6 INTERCHANGEABLE
Stop Light-Taillight,vehicular
Petersen Mfg Co Inc
5305-00-215-8008 INTERCHANGEABLE
Screw,machine
3825-00-493-28506129 INTERCHANGEABLE
Cylinder
Unimasco Inc
5955-00-525-5718154029P9 INTERCHANGEABLE
Crystal Unit,quartz
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
4240-00-570-79936129 INTERCHANGEABLE
Head Assembly,shut-Off Valve
Avox Systems Inc Dba Avox Systems Inc
5355-00-642-8011IDA2022 INTERCHANGEABLE
Knob
Ge Medical Systems
3110-00-767-0796158507R1 INTERCHANGEABLE
Ring,bearing,outer
Navistar Intl Corp Truck Br Ohio Plant
Cross-Reference Index
Part NumberManufacturer
61-2-9 PRIMARY Allard Nazarian Group, Inc. Dba Granite State Manufacturing (USA)
Related Parts
5950-00-137-8074INTERCHANGEABLE
COIL,RADIO FREQUENCY
111-046-0007
5330-00-146-3154INTERCHANGEABLE
GASKET
5355-00-162-9107INTERCHANGEABLE
KNOB
6220-00-190-6407INTERCHANGEABLE
STOP LIGHT-TAILLIGHT,VEHICULAR
428-R-6
5305-00-215-8008INTERCHANGEABLE
SCREW,MACHINE
3825-00-493-2850INTERCHANGEABLE
CYLINDER
6129
5955-00-525-5718INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
154029P9
4240-00-570-7993INTERCHANGEABLE
HEAD ASSEMBLY,SHUT-OFF VALVE
6129
5355-00-642-8011INTERCHANGEABLE
KNOB
IDA2022
3110-00-767-0796INTERCHANGEABLE
RING,BEARING,OUTER
158507R1
5935-01-085-9020INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
3110-01-178-1545INTERCHANGEABLE
BEARING
6-1-29

Frequently Asked Questions

What is NSN 3020-00-289-7947?

NSN 3020-00-289-7947 is a Gear,spur, manufactured by Allard Nazarian Group, Inc. Dba Granite State Manufacturing, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-289-7947?

NSN 3020-00-289-7947 has 1 cross-referenced part number: 61-2-9 (Allard Nazarian Group, Inc. Dba Granite State Manufacturing).

What NSN replaces 3020-00-289-7947?

There are 12 known substitutes for 3020-00-289-7947: 5950-00-137-8074, 5330-00-146-3154, 5355-00-162-9107 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 61-2-9?

Key specifications for 61-2-9: Pitch Diameter: 11.6250 INCHES NOMINAL IN; Teeth Quantity: 186; Body Style: WEBBED, WITH LIGHTENING HOLES; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 17 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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