PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4379-002Gear,helical

Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions · NSN 3020-00-245-8350 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-245-8350 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-245-8350. Primary manufacturer part number: 4379-002.
Features
  • Gear,helical — FSC 3020
  • Pitch Diameter: 2.0000 INCHES NOMINAL IN
  • Tooth Form: STANDARD
  • Nominal Outside Diameter: 2.4000 INCHES IN
  • Bore Style: W/ KEYWAY BOTH ENDS
  • Style Designator: HUBLESS
  • Bore Nominal Diameter: 0.750 INCHES FIRST END IN
  • Face Nominal Width: 1.749 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,helical, cataloged under National Stock Number 3020-00-245-8350, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-245-8350
Primary Part Number4379-002
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
StatusACTIVE
Pitch Diameter2.0000 INCHES NOMINAL IN
Tooth FormSTANDARD
Nominal Outside Diameter2.4000 INCHES IN
Bore StyleW/ KEYWAY BOTH ENDS
Style DesignatorHUBLESS
Bore Nominal Diameter0.750 INCHES FIRST END IN
Face Nominal Width1.749 INCHES IN
Helix Angle10.0000 DEGREES
Tooth DirectionRIGHT
Teeth TypeSINGLE HELIX
Body StylePLAIN, SOLID
Nominal Distance From Bore Center to Keyway Bottom0.4844 INCHES FIRST END IN
MaterialSTEEL OVERALL
Pressure Angle14.5000 DEGREES
Keyway Nominal Width0.188 INCHES BOTH ENDS IN
Material Document and ClassificationMIL-S-890,CLASS B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Teeth Quantity10
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3424-00-108-4426 INTERCHANGEABLE
Heat Treat System,infrared,porta
5330-00-641-097253X2519 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
6850-01-174-0212 INTERCHANGEABLE
Toner,direct Electrostatic Proce
Cross-Reference Index
Part NumberManufacturer
D27374PC328 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
D30407PC349 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
D27770PC347 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
4379-2 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
4379-002 PRIMARY Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
D27374PC328 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
D27770PC347 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
4379-002 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
4379-002 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
D30266PC328 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
V4379-2 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
D30407PC349 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
D30266PC328 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
V4379-2 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
Related Parts
3424-00-108-4426INTERCHANGEABLE
HEAT TREAT SYSTEM,INFRARED,PORTA
5330-00-641-0972INTERCHANGEABLE
SEAL,PLAIN ENCASED
53X2519
6850-01-174-0212INTERCHANGEABLE
TONER,DIRECT ELECTROSTATIC PROCE

Frequently Asked Questions

What is NSN 3020-00-245-8350?

NSN 3020-00-245-8350 is a Gear,helical, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-245-8350?

NSN 3020-00-245-8350 has 14 cross-referenced part numbers: D27374PC328 (Turbodyne Div of Dresser Industries Inc See Code 0br59), D30407PC349 (Turbodyne Div of Dresser Industries Inc See Code 0br59), D27770PC347 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 4379-2 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), 4379-002 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions) and 9 more.

What NSN replaces 3020-00-245-8350?

There are 3 known substitutes for 3020-00-245-8350: 3424-00-108-4426, 5330-00-641-0972, 6850-01-174-0212. Verify interchangeability with system specifications before substitution.

What are the specifications of 4379-002?

Key specifications for 4379-002: Pitch Diameter: 2.0000 INCHES NOMINAL IN; Tooth Form: STANDARD; Nominal Outside Diameter: 2.4000 INCHES IN; Bore Style: W/ KEYWAY BOTH ENDS. 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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