PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A2104Gear,spur

Northrop Grumman Corp Precision Products Plant · NSN 3020-00-373-0869 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-373-0869 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-373-0869. Primary manufacturer part number: A2104.
Features
  • Gear,spur — FSC 3020
  • Bore Nominal Diameter: 0.437 INCHES BOTH ENDS IN
  • Pitch Diameter: 1.7500 INCHES NOMINAL IN
  • Body Style: PLAIN, SOLID
  • Teeth Quantity: 56
  • Nominal Outside Diameter: 1.812 INCHES IN
  • Pressure Angle: 20.0000 DEGREES
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-373-0869, 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 Corp Precision Products Plant. Government technical data includes 13 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-373-0869
Primary Part NumberA2104
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNorthrop Grumman Corp Precision Products Plant
StatusACTIVE
Bore Nominal Diameter0.437 INCHES BOTH ENDS IN
Pitch Diameter1.7500 INCHES NOMINAL IN
Body StylePLAIN, SOLID
Teeth Quantity56
Nominal Outside Diameter1.812 INCHES IN
Pressure Angle20.0000 DEGREES
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 303 OVERALL
Style DesignatorHUBLESS
Face Nominal Width0.063 INCHES IN
Surface TreatmentPASSIVATE OVERALL
Bore StylePLAIN BOTH ENDS
Tooth FormSTANDARD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5340-00-115-6564A2104 INTERCHANGEABLE
Disk,solid,plain
Simmonds Precision Products Inc
3110-00-155-9145 INTERCHANGEABLE
Bearing,ball,thrust
3110-00-158-618986FT82 INTERCHANGEABLE
Bearing,ball,thrust
Oshkosh Defense Llc
5305-00-560-0443A2104 INTERCHANGEABLE
Screw
Kelly Manufacturing Company
5945-00-954-045144C241647P3 INTERCHANGEABLE
Relay,special
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
5330-01-432-8946 INTERCHANGEABLE
Gasket
Cross-Reference Index
Part NumberManufacturer
A2104 Northrop Grumman Corp Precision Products Plant (USA)
Related Parts
5340-00-115-6564INTERCHANGEABLE
DISK,SOLID,PLAIN
A2104
3110-00-155-9145INTERCHANGEABLE
BEARING,BALL,THRUST
3110-00-158-6189INTERCHANGEABLE
BEARING,BALL,THRUST
86FT82
5305-00-560-0443INTERCHANGEABLE
SCREW
A2104
5945-00-954-0451INTERCHANGEABLE
RELAY,SPECIAL
44C241647P3
5330-01-432-8946INTERCHANGEABLE
GASKET

Frequently Asked Questions

What is NSN 3020-00-373-0869?

NSN 3020-00-373-0869 is a Gear,spur, manufactured by Northrop Grumman Corp Precision Products Plant, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-373-0869?

NSN 3020-00-373-0869 has 1 cross-referenced part number: A2104 (Northrop Grumman Corp Precision Products Plant).

What NSN replaces 3020-00-373-0869?

There are 6 known substitutes for 3020-00-373-0869: 5340-00-115-6564, 3110-00-155-9145, 3110-00-158-6189 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A2104?

Key specifications for A2104: Bore Nominal Diameter: 0.437 INCHES BOTH ENDS IN; Pitch Diameter: 1.7500 INCHES NOMINAL IN; Body Style: PLAIN, SOLID; Teeth Quantity: 56. 13 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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