PartsTable TECHNICAL DATA SHEET
NSN 2840-00-345-3947Government record, cited

Spacer, Turbine Front2840-00-345-3947

NSN 2840-00-345-3947 · NIIN 003453947 · Part number 247054
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 77445
Government record, cited
NSN 2840-00-345-3947 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-345-3947. Manufacturer of record part number: 247054.
Also searched as  2840-00-345-3947 · 2840003453947 · NIIN 003453947 · 00-345-3947 · FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · CAGE 77445 · 247054
Nearby stock numbers  ·
Features
  • Spacer,turbine Front — FSC 2840
  • Criticality Code Justification: AGAV
  • 5 manufacturer part numbers on file
  • Manufacturer of record: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Identification
  • NSN: 2840-00-345-3947
  • NIIN: 003453947
  • FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
  • FSG: 28 — Engines, Turbines, and Components
  • Primary part number: 247054
  • Manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
General Description

The Spacer,turbine Front, cataloged under National Stock Number 2840-00-345-3947, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2840-00-345-3947
Primary Part Number247054
Item NameSpacer,turbine Front
FSC / FSG2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
Criticality Code JustificationAGAV
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL Q — CCL Item — Commerce Control List
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeY
⇄ Related Items 1
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
6640-01-353-5688156-4045 POSSIBLE MATCH
FILTER UNIT,MICROPOROUS
Possible match (shared part number)Nalge Co Div of Sybron Corp
Cross-Reference Index
Part NumberManufacturer
247054 Wgi Inc. Dba Wgi Inc (USA)
247054 Union Machine Co of Lynn, Inc (USA)
247054 Eti Tech Llc (USA)
247054 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
247054 PRIMARY Rtx Corporation Div Pratt & Whitney (USA)
Reference documents
ReferenceMeaning
247054 5/9 Secondary reference
Lewis Machine, Llc
247054 5/9 Secondary reference
Hart Acquisition Company, Llc Dba Hart Precision Machining, Llc Div Hart Precision Machining
247054 5/9 Secondary reference
Electro-Methods, L.p.
247054 5/9 Secondary reference
Enjet Aero Bloomfield, Llc
Related Parts
6640-01-353-5688POSSIBLE MATCH
FILTER UNIT,MICROPOROUS
156-4045

Frequently Asked Questions

What is NSN 2840-00-345-3947?

NSN 2840-00-345-3947 is a Spacer,turbine Front, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.

What part numbers are listed for NSN 2840-00-345-3947?

NSN 2840-00-345-3947 has 5 manufacturer part numbers on file: 247054 (Wgi Inc. Dba Wgi Inc), 247054 (Union Machine Co of Lynn, Inc), 247054 (Eti Tech Llc), 247054 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 247054 (Rtx Corporation Div Pratt & Whitney).

What NSN replaces 2840-00-345-3947?

1 possible match (shared part number, not a government interchangeability claim): 6640-01-353-5688. Verify interchangeability with system specifications before substitution.

What are the specifications of 247054?

Key specifications for 247054: Criticality Code Justification: AGAV; End Item Identification: ACFT ENG J57. 1 specification is documented in the U.S. Government catalog.

Is NSN 2840-00-345-3947 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

What is the DEMIL code for NSN 2840-00-345-3947?

NSN 2840-00-345-3947 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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