PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41237Gear,spur

Triumph Engine Control Systems Llc · NSN 3020-00-671-5520 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-671-5520 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-671-5520. Primary manufacturer part number: 41237.
Features
  • Gear,spur — FSC 3020
  • Teeth Quantity: 21
  • Body Style: PLAIN, SOLID
  • Pitch Diameter: 0.6562 INCHES NOMINAL IN
  • Pressure Angle: 20.0000 DEGREES
  • Style Designator: HUBLESS
  • Backlash Designation: GRADE A
  • Tooth Form: STUB
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-671-5520, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Triumph Engine Control Systems Llc. Government technical data includes 7 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-671-5520
Primary Part Number41237
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerTriumph Engine Control Systems Llc
StatusACTIVE
Teeth Quantity21
Body StylePLAIN, SOLID
Pitch Diameter0.6562 INCHES NOMINAL IN
Pressure Angle20.0000 DEGREES
Style DesignatorHUBLESS
Backlash DesignationGRADE A
Tooth FormSTUB
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
7530-00-198-5873STYLE189-PLAIN INTERCHANGEABLE
Envelope,mailing
Bowers Envelope Company, Inc.
5355-00-320-856141237 INTERCHANGEABLE
Knob
L3harris Technologies, Inc Div Space & Airborne Systems
3030-00-528-4279 INTERCHANGEABLE
Belt,v
5962-01-089-702841237 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
3020-01-243-2696 INTERCHANGEABLE
Idle Gear
Cross-Reference Index
Part NumberManufacturer
41237 PRIMARY Triumph Engine Control Systems Llc (USA)
Related Parts
7530-00-198-5873INTERCHANGEABLE
ENVELOPE,MAILING
STYLE189-PLAIN
5355-00-320-8561INTERCHANGEABLE
KNOB
41237
3030-00-528-4279INTERCHANGEABLE
BELT,V
5962-01-089-7028INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
41237
3020-01-243-2696INTERCHANGEABLE
IDLE GEAR

Frequently Asked Questions

What is NSN 3020-00-671-5520?

NSN 3020-00-671-5520 is a Gear,spur, manufactured by Triumph Engine Control Systems Llc, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-671-5520?

NSN 3020-00-671-5520 has 1 cross-referenced part number: 41237 (Triumph Engine Control Systems Llc).

What NSN replaces 3020-00-671-5520?

There are 5 known substitutes for 3020-00-671-5520: 7530-00-198-5873, 5355-00-320-8561, 3030-00-528-4279 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 41237?

Key specifications for 41237: Teeth Quantity: 21; Body Style: PLAIN, SOLID; Pitch Diameter: 0.6562 INCHES NOMINAL IN; Pressure Angle: 20.0000 DEGREES. 7 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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