PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1120-50125Gear,spur

Northrop Grumman Systems Corporation · NSN 3020-00-056-5484 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-056-5484 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-056-5484. Primary manufacturer part number: 1120-50125.
Features
  • Gear,spur — FSC 3020
  • Pitch Diameter: 7.1666 INCHES NOMINAL IN
  • Teeth Quantity: 516
  • Bore Style: PLAIN BOTH ENDS
  • Material: ALUMINUM ALLOY 6061 OVERALL
  • Nominal Outside Diameter: 7.194 INCHES IN
  • Nominal Distance Between Body Face and Protruding Hub End: 0.062 INCHES FIRST END IN
  • Hub Nominal Diameter: 7.115 INCHES FIRST END IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy 6061 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-056-5484, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 15 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-056-5484
Primary Part Number1120-50125
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation
StatusACTIVE
Pitch Diameter7.1666 INCHES NOMINAL IN
Teeth Quantity516
Bore StylePLAIN BOTH ENDS
MaterialALUMINUM ALLOY 6061 OVERALL
Nominal Outside Diameter7.194 INCHES IN
Nominal Distance Between Body Face and Protruding Hub End0.062 INCHES FIRST END IN
Hub Nominal Diameter7.115 INCHES FIRST END IN
Tooth FormSTANDARD
Style DesignatorPROTRUDING HUB
Bore Nominal Diameter6.040 INCHES BOTH ENDS IN
Pressure Angle20.0000 DEGREES
Material Document and ClassificationQQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Face Nominal Width0.062 INCHES IN
Hub Style DesignatorPLAIN FIRST END
Body StyleWEBBED, SOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-293-8579 INTERCHANGEABLE
Bearing,roller,tapered
Cross-Reference Index
Part NumberManufacturer
1120-50125 Northrop Grumman Systems Corporation (USA)
1120-501 Fluid Mechanisms of Hauppauge, Inc. (USA)
1120-50125 Fluid Mechanisms of Hauppauge, Inc. (USA)
Related Parts
3110-00-293-8579INTERCHANGEABLE
BEARING,ROLLER,TAPERED

Frequently Asked Questions

What is NSN 3020-00-056-5484?

NSN 3020-00-056-5484 is a Gear,spur, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-056-5484?

NSN 3020-00-056-5484 has 3 cross-referenced part numbers: 1120-50125 (Northrop Grumman Systems Corporation), 1120-501 (Fluid Mechanisms of Hauppauge, Inc.), 1120-50125 (Fluid Mechanisms of Hauppauge, Inc.).

What NSN replaces 3020-00-056-5484?

There is 1 known substitute for 3020-00-056-5484: 3110-00-293-8579. Verify interchangeability with system specifications before substitution.

What are the specifications of 1120-50125?

Key specifications for 1120-50125: Pitch Diameter: 7.1666 INCHES NOMINAL IN; Teeth Quantity: 516; Bore Style: PLAIN BOTH ENDS; Material: ALUMINUM ALLOY 6061 OVERALL. 15 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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