PartsTable TECHNICAL DATA SHEET
NSN 2840-00-396-4947Government record, cited

Spacer Assembly, Com2840-00-396-4947

NSN 2840-00-396-4947 · NIIN 003964947 · Part number 204987
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 2840-00-396-4947 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-396-4947. Manufacturer of record part number: 204987.
Also searched as  2840-00-396-4947 · 2840003964947 · NIIN 003964947 · 00-396-4947 · FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · CAGE 77445 · 204987
Nearby stock numbers  ·
Features
  • Spacer Assembly,com — FSC 2840
  • Criticality Code Justification: AGAV
  • 1 manufacturer part number on file
  • Manufacturer of record: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Identification
  • NSN: 2840-00-396-4947
  • NIIN: 003964947
  • FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
  • FSG: 28 — Engines, Turbines, and Components
  • Primary part number: 204987
  • Manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
General Description

The Spacer Assembly,com, cataloged under National Stock Number 2840-00-396-4947, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 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
NSN2840-00-396-4947
Primary Part Number204987
Item NameSpacer Assembly,com
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 A — No Demilitarization Required
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.
5360-00-562-379210043943-24 POSSIBLE MATCH
SPRING,HELICAL,COMPRESSION
Possible match (shared part number)Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
204987 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5360-00-562-3792POSSIBLE MATCH
SPRING,HELICAL,COMPRESSION
10043943-24

Frequently Asked Questions

What is NSN 2840-00-396-4947?

NSN 2840-00-396-4947 is a Spacer Assembly,com, 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 2840-00-396-4947?

NSN 2840-00-396-4947 has 1 manufacturer part number on file: 204987 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 2840-00-396-4947?

1 possible match (shared part number, not a government interchangeability claim): 5360-00-562-3792. Verify interchangeability with system specifications before substitution.

What are the specifications of 204987?

Key specifications for 204987: Criticality Code Justification: AGAV; End Item Identification: ACFT ENG J57. 1 specification is documented in the U.S. Government catalog.

Is NSN 2840-00-396-4947 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.

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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