PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A3211959Gear,helical

Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions · NSN 3020-00-528-9488 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-528-9488 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-528-9488. Primary manufacturer part number: A3211959.
Features
  • Gear,helical — FSC 3020
  • Pressure Angle: 30.0000 DEGREES
  • Material: STEEL COMP 4140 OVERALL
  • Tooth Form: STANDARD
  • Teeth Type: SINGLE HELIX
  • Helix Angle: 5.0000 DEGREES
  • Nominal Outside Diameter: 2.3960 INCHES IN
  • Tooth Direction: LEFT
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4140 Overall construction
General Description

The Gear,helical, cataloged under National Stock Number 3020-00-528-9488, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-528-9488
Primary Part NumberA3211959
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
Pressure Angle30.0000 DEGREES
MaterialSTEEL COMP 4140 OVERALL
Tooth FormSTANDARD
Teeth TypeSINGLE HELIX
Helix Angle5.0000 DEGREES
Nominal Outside Diameter2.3960 INCHES IN
Tooth DirectionLEFT
Body StylePLAIN, SOLID
Teeth Quantity10
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorHUBLESS
Pitch Diameter2.0000 INCHES NOMINAL IN
Bore Nominal Diameter0.751 INCHES BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3455-00-232-409819952 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5977-00-284-9546 INTERCHANGEABLE
Brush,electrical Contact
5975-01-701-555063471 INTERCHANGEABLE
Strap,tie Down,electrical Compon
Fastenal Company Dba Fastenal Co
5975-01-702-320083-6104 INTERCHANGEABLE
Strap,tie Down,electrical Compon
Grote Industries Inc Dba Grote Manufacturing Co Div Military Products
Cross-Reference Index
Part NumberManufacturer
A3211959 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
A3211959 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
63471 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
LH63611PC10-7 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
A3211959 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
A3211959 PRIMARY Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
LH63611PC10-7 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
LA63471 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
LA63471 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
LA63471 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
LH63611PC10-7 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
LH63611PC10-7 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
A3211959 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
LH63611PC10-7 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
LA63471 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
LA63471 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
3211959 Naval Ship Systems Command (USA)
Related Parts
3455-00-232-4098INTERCHANGEABLE
REAMER,MACHINE
19952
5977-00-284-9546INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
5975-01-701-5550INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
63471
5975-01-702-3200INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
83-6104

Frequently Asked Questions

What is NSN 3020-00-528-9488?

NSN 3020-00-528-9488 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 3020-00-528-9488?

NSN 3020-00-528-9488 has 17 cross-referenced part numbers: A3211959 (Turbodyne Div of Dresser Industries Inc See Code 0br59), A3211959 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 63471 (Turbodyne Div of Dresser Industries Inc See Code 0br59), LH63611PC10-7 (Turbodyne Div of Dresser Industries Inc See Code 0br59), A3211959 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand) and 12 more.

What NSN replaces 3020-00-528-9488?

There are 4 known substitutes for 3020-00-528-9488: 3455-00-232-4098, 5977-00-284-9546, 5975-01-701-5550 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A3211959?

Key specifications for A3211959: Pressure Angle: 30.0000 DEGREES; Material: STEEL COMP 4140 OVERALL; Tooth Form: STANDARD; Teeth Type: SINGLE HELIX. 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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