PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

134-091Gear Sector,spur

Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp · NSN 3020-00-573-9049 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-573-9049 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-573-9049. Primary manufacturer part number: 134-091.
Features
  • Gear Sector,spur — FSC 3020
  • Tooth Form: STANDARD
  • Hub Style Designator: PLAIN FIRST END
  • Style Designator: PROTRUDING HUB
  • Bore Style: PLAIN BOTH ENDS
  • Pitch Radius: 3.7500 INCHES NOMINAL IN
  • Bore Nominal Diameter: 0.563 INCHES BOTH ENDS IN
  • Pressure Angle: 14.5000 DEGREES
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear Sector,spur, cataloged under National Stock Number 3020-00-573-9049, 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 Corp Dba Northrop Grumman Systems Corp. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-573-9049
Primary Part Number134-091
Item NameGear Sector,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
StatusACTIVE
Tooth FormSTANDARD
Hub Style DesignatorPLAIN FIRST END
Style DesignatorPROTRUDING HUB
Bore StylePLAIN BOTH ENDS
Pitch Radius3.7500 INCHES NOMINAL IN
Bore Nominal Diameter0.563 INCHES BOTH ENDS IN
Pressure Angle14.5000 DEGREES
MaterialSTEEL OVERALL
Nominal Outside Radius3.781 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6105-00-923-6080 INTERCHANGEABLE
Motor
4820-01-132-067070007 INTERCHANGEABLE
Valve,linear,directional Control
DP Manufacturing Inc.
Cross-Reference Index
Part NumberManufacturer
134-091 PRIMARY Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA)
1783740 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
6105-00-923-6080INTERCHANGEABLE
MOTOR
4820-01-132-0670INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
70007

Frequently Asked Questions

What is NSN 3020-00-573-9049?

NSN 3020-00-573-9049 is a Gear Sector,spur, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-573-9049?

NSN 3020-00-573-9049 has 2 cross-referenced part numbers: 134-091 (Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp), 1783740 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 3020-00-573-9049?

There are 2 known substitutes for 3020-00-573-9049: 6105-00-923-6080, 4820-01-132-0670. Verify interchangeability with system specifications before substitution.

What are the specifications of 134-091?

Key specifications for 134-091: Tooth Form: STANDARD; Hub Style Designator: PLAIN FIRST END; Style Designator: PROTRUDING HUB; Bore Style: PLAIN BOTH ENDS. 9 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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