PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

109099-001Gear,helical

Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions · NSN 3020-00-244-9861 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-244-9861 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-244-9861. Primary manufacturer part number: 109099-001.
Features
  • Gear,helical — FSC 3020
  • Pitch Diameter: 2.7500 INCHES NOMINAL IN
  • Nominal Outside Diameter: 3.1475 INCHES IN
  • Face Nominal Width: 3.499 INCHES IN
  • Helix Angle: 10.0000 DEGREES
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Pressure Angle: 20.0000 DEGREES
  • Tooth Form: STANDARD
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 3020-00-244-9861, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-244-9861
Primary Part Number109099-001
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 Diameter2.7500 INCHES NOMINAL IN
Nominal Outside Diameter3.1475 INCHES IN
Face Nominal Width3.499 INCHES IN
Helix Angle10.0000 DEGREES
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Pressure Angle20.0000 DEGREES
Tooth FormSTANDARD
Style DesignatorHUBLESS
Teeth TypeSINGLE HELIX
Hardness Rating27.0 ROCKWELL C NOMINAL OVERALL
Body StylePLAIN, SOLID
Bore StylePLAIN BOTH ENDS
Bore Nominal Diameter1.125 INCHES BOTH ENDS IN
Teeth Quantity13
Tooth DirectionLEFT
MaterialSTEEL COMP 4140 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3460-00-322-5930K17 INTERCHANGEABLE
Wheel,abrasive
Sioux Tools Inc
3460-00-322-5934SXF39 INTERCHANGEABLE
Wheel,abrasive
Regis Manufacturing Company
3460-00-322-5935K95 INTERCHANGEABLE
Wheel,abrasive
Sioux Tools Inc
3460-00-337-6332SX-1530-S INTERCHANGEABLE
Wheel,abrasive
Goodson Manufacturing Co Dba Goodson Manufacturing Co
2805-00-360-705699947 INTERCHANGEABLE
Piston,internal Combustion Engin
Briggs and Stratton Corp
3460-00-491-0224K521 INTERCHANGEABLE
Wheel,abrasive
Sioux Tools Inc
3460-00-491-0226K523 INTERCHANGEABLE
Wheel,abrasive
Sioux Tools Inc
3460-00-491-0230K527 INTERCHANGEABLE
Wheel,abrasive
Sioux Tools Inc
5340-01-483-4854109099-001 INTERCHANGEABLE
Stop,mechanical
B/e Aerospace Inc Dba Interturbine
Cross-Reference Index
Part NumberManufacturer
109099 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
109099-001 PRIMARY Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
109099 Turbodyne Div of Dresser Industries Inc See Code 0br59 (USA)
109099-001 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
109099-001 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
Related Parts
3460-00-322-5930INTERCHANGEABLE
WHEEL,ABRASIVE
K17
3460-00-322-5934INTERCHANGEABLE
WHEEL,ABRASIVE
SXF39
3460-00-322-5935INTERCHANGEABLE
WHEEL,ABRASIVE
K95
3460-00-337-6332INTERCHANGEABLE
WHEEL,ABRASIVE
SX-1530-S
2805-00-360-7056INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
99947
3460-00-491-0224INTERCHANGEABLE
WHEEL,ABRASIVE
K521
3460-00-491-0226INTERCHANGEABLE
WHEEL,ABRASIVE
K523
3460-00-491-0230INTERCHANGEABLE
WHEEL,ABRASIVE
K527
5340-01-483-4854INTERCHANGEABLE
STOP,MECHANICAL
109099-001

Frequently Asked Questions

What is NSN 3020-00-244-9861?

NSN 3020-00-244-9861 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 3020-00-244-9861?

NSN 3020-00-244-9861 has 5 cross-referenced part numbers: 109099 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), 109099-001 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), 109099 (Turbodyne Div of Dresser Industries Inc See Code 0br59), 109099-001 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 109099-001 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand).

What NSN replaces 3020-00-244-9861?

There are 9 known substitutes for 3020-00-244-9861: 3460-00-322-5930, 3460-00-322-5934, 3460-00-322-5935 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 109099-001?

Key specifications for 109099-001: Pitch Diameter: 2.7500 INCHES NOMINAL IN; Nominal Outside Diameter: 3.1475 INCHES IN; Face Nominal Width: 3.499 INCHES IN; Helix Angle: 10.0000 DEGREES. 16 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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