PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

345975Gear Set,helical,matched

Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions · NSN 3020-00-821-0784 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-821-0784 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-821-0784. Primary manufacturer part number: 345975.
Features
  • Gear Set,helical,matched — FSC 3020
  • FSC Application Data: STEAM TURBINE
  • Nonsupply Items and Quantities: 82328 1564NC6508 GEAR 1;82328 155HNB6507 GEAR 1
  • Component Quantity: 2
  • 9 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear Set,helical,matched, cataloged under National Stock Number 3020-00-821-0784, 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 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-821-0784
Primary Part Number345975
Item NameGear Set,helical,matched
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
StatusCANCELLED
FSC Application DataSTEAM TURBINE
Nonsupply Items and Quantities82328 1564NC6508 GEAR 1;82328 155HNB6507 GEAR 1
Component Quantity2
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
6625-00-839-2276345-024 INTERCHANGEABLE
Meter,arbitrary Scale
Jewell Instruments Llc
5340-00-863-062287328 INTERCHANGEABLE
Boot,dust and Moisture Seal
Goodrich Corporation
5962-01-071-6151345024 INTERCHANGEABLE
Microcircuit,digital
Telemechanics Inc
5935-01-138-9966345975 INTERCHANGEABLE
Connector,plug,electrical
Fluke Corp
5905-01-181-2672345024 INTERCHANGEABLE
Resistor Network,fixed,film
Boonton Electronics Corporation Div Boonton Electronics
Cross-Reference Index
Part NumberManufacturer
NB-6507 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
345024 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
345975 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
345975 PRIMARY Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
156HNC-6508X155 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
87328 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
345975 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
156HNC6508AND155HNB6507 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
345975 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
Related Parts
6625-00-839-2276INTERCHANGEABLE
METER,ARBITRARY SCALE
345-024
5340-00-863-0622INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
87328
5962-01-071-6151INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
345024
5935-01-138-9966INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
345975
5905-01-181-2672INTERCHANGEABLE
RESISTOR NETWORK,FIXED,FILM
345024

Frequently Asked Questions

What is NSN 3020-00-821-0784?

NSN 3020-00-821-0784 is a Gear Set,helical,matched, 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: cancelled.

What are the part numbers for NSN 3020-00-821-0784?

NSN 3020-00-821-0784 has 9 cross-referenced part numbers: NB-6507 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), 345024 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), 345975 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 345975 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), 156HNC-6508X155 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture) and 4 more.

What NSN replaces 3020-00-821-0784?

There are 5 known substitutes for 3020-00-821-0784: 6625-00-839-2276, 5340-00-863-0622, 5962-01-071-6151 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 345975?

Key specifications for 345975: FSC Application Data: STEAM TURBINE; Nonsupply Items and Quantities: 82328 1564NC6508 GEAR 1;82328 155HNB6507 GEAR 1; Component Quantity: 2. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-821-0784 still in active supply?

NSN 3020-00-821-0784 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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