PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20409Valve,regulating,fluid Pressure

Gas Turbine Efficiency Ab Gte · NSN 4820-01-540-3401 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-540-3401 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-540-3401. Primary manufacturer part number: 20409.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • 5 verified cross-references
  • Primary manufacturer: Gas Turbine Efficiency Ab Gte
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-540-3401, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Gas Turbine Efficiency Ab Gte. This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-540-3401
Primary Part Number20409
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGas Turbine Efficiency Ab Gte
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6210-00-478-900320277 INTERCHANGEABLE
Light,indicator
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
3455-00-494-1083 INTERCHANGEABLE
Cutter,hole
5365-00-515-1897 INTERCHANGEABLE
Shim
5962-00-577-4059351-8200-010 INTERCHANGEABLE
Microcircuit,digital
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
4410-00-613-2647SA150-11 INTERCHANGEABLE
Float and Rod
Itt Mcdonnell-Miller a Unit of Itt Fluid Handling Div
5935-00-681-47228909792 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Aviation and Missile Command
3030-00-858-813820409 INTERCHANGEABLE
Belting,flat
Eagle Crusher Co Inc Dba Stedman Machine Co
5915-01-092-640192125 INTERCHANGEABLE
Filter,band Pass
Drs Signal Solutions, Inc.
5935-01-342-3115G350543-1 INTERCHANGEABLE
Connector,plug,electrical
L3harris Technologies, Inc Div Space & Airborne Systems
2920-01-392-3956SAW-13923956 INTERCHANGEABLE
Generator,engine Accessory
Southern Automotive Wholesalers, Inc
Cross-Reference Index
Part NumberManufacturer
40071476 Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt) (GBR)
20409 Rolls-Royce Plc Naval Marine (GBR)
20409 Gas Turbine Efficiency Ab Gte Dba Engineering Div Main Office (SWE)
20277 Gas Turbine Efficiency Ab Gte Dba Engineering Div Main Office (SWE)
20409 PRIMARY Gas Turbine Efficiency Ab Gte (SWE)
Related Parts
6210-00-478-9003INTERCHANGEABLE
LIGHT,INDICATOR
20277
3455-00-494-1083INTERCHANGEABLE
CUTTER,HOLE
5365-00-515-1897INTERCHANGEABLE
SHIM
5962-00-577-4059INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
351-8200-010
4410-00-613-2647INTERCHANGEABLE
FLOAT AND ROD
SA150-11
5935-00-681-4722INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
8909792
3030-00-858-8138INTERCHANGEABLE
BELTING,FLAT
20409
5915-01-092-6401INTERCHANGEABLE
FILTER,BAND PASS
92125
5935-01-342-3115INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
G350543-1
2920-01-392-3956INTERCHANGEABLE
GENERATOR,ENGINE ACCESSORY
SAW-13923956
6640-01-416-6019INTERCHANGEABLE
REGULATOR,VENTILATO
5331-01-556-4653INTERCHANGEABLE
O-RING
20277

Frequently Asked Questions

What is NSN 4820-01-540-3401?

NSN 4820-01-540-3401 is a Valve,regulating,fluid Pressure, manufactured by Gas Turbine Efficiency Ab Gte, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-540-3401?

NSN 4820-01-540-3401 has 5 cross-referenced part numbers: 40071476 (Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt)), 20409 (Rolls-Royce Plc Naval Marine), 20409 (Gas Turbine Efficiency Ab Gte Dba Engineering Div Main Office), 20277 (Gas Turbine Efficiency Ab Gte Dba Engineering Div Main Office), 20409 (Gas Turbine Efficiency Ab Gte).

What NSN replaces 4820-01-540-3401?

There are 12 known substitutes for 4820-01-540-3401: 6210-00-478-9003, 3455-00-494-1083, 5365-00-515-1897 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20409?

Key specifications for 20409: End Item Identification: GAS TURBINE EFFICIENCY WATER WASH SYSTEM FOR LCS1. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com