PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

704059Case and Nozzle Assembly,turbine

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 2840-00-139-8661 · FSC 2840 · No Item Name Available
Verified by PartsTable
NSN 2840-00-139-8661 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-139-8661. Primary manufacturer part number: 704059.
Features
  • Case and Nozzle Assembly,turbine — FSC 2840
  • Engine Section Location: TURBINE
  • 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 Case and Nozzle Assembly,turbine, cataloged under National Stock Number 2840-00-139-8661, 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 2 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
NSN2840-00-139-8661
Primary Part Number704059
Item NameCase and Nozzle Assembly,turbine
FSC / FSG2840 / 28 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Engine Section LocationTURBINE
Criticality Code JustificationAGAV
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-00-595-319100372-0249 INTERCHANGEABLE
Cock,shutoff,screw Stem
Asrc Federal Facilities Logistics, Llc
Cross-Reference Index
Part NumberManufacturer
704059 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
4820-00-595-3191INTERCHANGEABLE
COCK,SHUTOFF,SCREW STEM
00372-0249

Frequently Asked Questions

What is NSN 2840-00-139-8661?

NSN 2840-00-139-8661 is a Case and Nozzle Assembly,turbine, 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 2840-00-139-8661?

NSN 2840-00-139-8661 has 1 cross-referenced part number: 704059 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 2840-00-139-8661?

There is 1 known substitute for 2840-00-139-8661: 4820-00-595-3191. Verify interchangeability with system specifications before substitution.

What are the specifications of 704059?

Key specifications for 704059: Engine Section Location: TURBINE; End Item Identification: J-57 AIRCRAFT ENGINE; Criticality Code Justification: AGAV; Special Features: ORIGINAL NAME CASE AND NOZZLE,TURBINE,TURBINE ENGINE. 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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