PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4079903Disk,turbine,aircraft Gas Turbin

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 2840-01-331-4809 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-01-331-4809 — this item is cataloged by the U.S. Government under National Stock Number 2840-01-331-4809. Primary manufacturer part number: 4079903.
Features
  • Disk,turbine,aircraft Gas Turbin — FSC 2840
  • Engine Section Location: TURBINE
  • Stage Number: 3
  • Criticality Code Justification: AGAV
  • 1 verified cross-reference
  • Primary manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Disk,turbine,aircraft Gas Turbin, cataloged under National Stock Number 2840-01-331-4809, is classified within Federal Supply Class 2840 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2840-01-331-4809
Primary Part Number4079903
Item NameDisk,turbine,aircraft Gas Turbin
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Engine Section LocationTURBINE
Stage Number3
Criticality Code JustificationAGAV
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2840-01-136-05504059003 INTERCHANGEABLE
Disk,compressor,aircraft Gas Tur
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Cross-Reference Index
Part NumberManufacturer
4079903 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
2840-01-136-0550INTERCHANGEABLE
DISK,COMPRESSOR,AIRCRAFT GAS TUR
4059003

Frequently Asked Questions

What is NSN 2840-01-331-4809?

NSN 2840-01-331-4809 is a Disk,turbine,aircraft Gas Turbin, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840 (No Item Name Available). Status: active.

What are the part numbers for NSN 2840-01-331-4809?

NSN 2840-01-331-4809 has 1 cross-referenced part number: 4079903 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 2840-01-331-4809?

There is 1 known substitute for 2840-01-331-4809: 2840-01-136-0550. Verify interchangeability with system specifications before substitution.

What are the specifications of 4079903?

Key specifications for 4079903: Engine Section Location: TURBINE; End Item Identification: ACFT ENG F100/200/220; Stage Number: 3; Criticality Code Justification: AGAV. 4 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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