PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C4605PC270Gear,helical

Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions · NSN 3020-00-274-6606 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-274-6606 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-274-6606. Primary manufacturer part number: C4605PC270.
Features
  • Gear,helical — FSC 3020
  • Pressure Angle: 14.5000 DEGREES
  • Body Style: PLAIN, SOLID
  • Face Nominal Width: 1.2450 INCHES IN
  • Helix Angle: 19.5000 DEGREES
  • Keyway Nominal Width: 0.250 INCHES BOTH ENDS IN
  • Teeth Type: SINGLE HELIX
  • Material: COPPER ALLOY OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Copper Alloy Overall construction
General Description

The Gear,helical, cataloged under National Stock Number 3020-00-274-6606, 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 Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 3 manufacturers, 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
NSN3020-00-274-6606
Primary Part NumberC4605PC270
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
StatusACTIVE
Pressure Angle14.5000 DEGREES
Body StylePLAIN, SOLID
Face Nominal Width1.2450 INCHES IN
Helix Angle19.5000 DEGREES
Keyway Nominal Width0.250 INCHES BOTH ENDS IN
Teeth TypeSINGLE HELIX
MaterialCOPPER ALLOY OVERALL
Tooth DirectionRIGHT
Material Document and ClassificationSAE 65 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nominal Distance From Bore Center to Keyway Bottom0.6875 INCHES BOTH ENDS IN
Style DesignatorHUBLESS
Bore StyleW/ KEYWAY BOTH ENDS
Nominal Outside Diameter2.503 INCHES IN
Pitch Diameter2.2540 INCHES NOMINAL IN
Bore Nominal Diameter0.8745 INCHES BOTH ENDS IN
Teeth Quantity17
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4820-00-446-3497118822PC15 INTERCHANGEABLE
Valve,safety Relief
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
5945-00-450-534930435 INTERCHANGEABLE
Relay,thermal
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
1630-00-704-1950304-35 INTERCHANGEABLE
Parts Kit,wheel,nos
Goodrich Corporation
5365-01-331-975730435 INTERCHANGEABLE
Spacer,sleeve
Decitek Corp
6850-01-376-1766EP-E CARTRIDGE INTERCHANGEABLE
Toner,direct Electrostatic Proce
Tei Imaging Solutions, Inc
Cross-Reference Index
Part NumberManufacturer
E9291PC270 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
30435 Terry Corp of Connecticut Sub of Ingersoll-Rand Co (USA)
C4605PC270 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
C4605PC270 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
30435 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
30435 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
E9291PC270 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
C4605PC270 Terry Corp of Connecticut Sub of Ingersoll-Rand Co (USA)
E9291PC270 Terry Corp of Connecticut Sub of Ingersoll-Rand Co (USA)
Related Parts
4820-00-446-3497INTERCHANGEABLE
VALVE,SAFETY RELIEF
118822PC15
5945-00-450-5349INTERCHANGEABLE
RELAY,THERMAL
30435
1630-00-704-1950INTERCHANGEABLE
PARTS KIT,WHEEL,NOS
304-35
5365-01-331-9757INTERCHANGEABLE
SPACER,SLEEVE
30435
6850-01-376-1766INTERCHANGEABLE
TONER,DIRECT ELECTROSTATIC PROCE
EP-E CARTRIDGE

Frequently Asked Questions

What is NSN 3020-00-274-6606?

NSN 3020-00-274-6606 is a Gear,helical, manufactured by Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-274-6606?

NSN 3020-00-274-6606 has 9 cross-referenced part numbers: E9291PC270 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), 30435 (Terry Corp of Connecticut Sub of Ingersoll-Rand Co), C4605PC270 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), C4605PC270 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 30435 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions) and 4 more.

What NSN replaces 3020-00-274-6606?

There are 5 known substitutes for 3020-00-274-6606: 4820-00-446-3497, 5945-00-450-5349, 1630-00-704-1950 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C4605PC270?

Key specifications for C4605PC270: Pressure Angle: 14.5000 DEGREES; Body Style: PLAIN, SOLID; Face Nominal Width: 1.2450 INCHES IN; Helix Angle: 19.5000 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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