PartsTable TECHNICAL DATA SHEET
NSN 2840-01-274-1538Government record, cited

Engine Assembly, Guided Missile2840-01-274-1538

NSN 2840-01-274-1538 · NIIN 012741538 · Part number 642AS1946-1
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 30003
Government record, cited
NSN 2840-01-274-1538 — this item is cataloged by the U.S. Government under National Stock Number 2840-01-274-1538. Manufacturer of record part number: 642AS1946-1.
Also searched as  2840-01-274-1538 · 2840012741538 · NIIN 012741538 · 01-274-1538 · FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · CAGE 30003 · 642AS1946-1
Nearby stock numbers  ·
Features
  • Engine Assembly,guided Missile — FSC 2840
  • General Characteristics Item Description: TURBOJET,WHITE,HARPOON,C/O TURBOJET ENGINE J402-CA-400,INSULATION ASSEMBLY 642AS0239-1,BLEED AIR HOSE 642AS0242,29.44 IN. LG,12.52 IN. DIA. WT. 101.50 LBS,PKG AS REQUIRED LBS
  • Hazardous Material Classification Code: I COAST GUARD CLASS AND 1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION AND F DEPARTMENT OF TRANSPORTATION CLASS AND I FIREFIGHTING GROUP AND S STORAGE COMPATIBILITY GROUP
  • 1 manufacturer part number on file
  • Manufacturer of record: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Identification
  • NSN: 2840-01-274-1538
  • NIIN: 012741538
  • FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
  • FSG: 28 — Engines, Turbines, and Components
  • Primary part number: 642AS1946-1
  • Manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
General Description

The Engine Assembly,guided Missile, cataloged under National Stock Number 2840-01-274-1538, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 2 specifications, 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2840-01-274-1538
Primary Part Number642AS1946-1
Item NameEngine Assembly,guided Missile
FSC / FSG2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
StatusACTIVE
General Characteristics Item DescriptionTURBOJET,WHITE,HARPOON,C/O TURBOJET ENGINE J402-CA-400,INSULATION ASSEMBLY 642AS0239-1,BLEED AIR HOSE 642AS0242,29.44 IN. LG,12.52 IN. DIA. WT. 101.50 LBS,PKG AS REQUIRED LBS
Hazardous Material Classification CodeI COAST GUARD CLASS AND 1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION AND F DEPARTMENT OF TRANSPORTATION CLASS AND I FIREFIGHTING GROUP AND S STORAGE COMPATIBILITY GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL G — Ammunition & Explosives
HazardNo hazard code in the DLA record (HMIC N) I COAST GUARD CLASS AND 1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION AND F DEPARTMENT OF TRANSPORTATION CLASS AND I FIREFIGHTING GROUP AND S STORAGE COMPATIBILITY GROUP
Criticality CodeN
Cross-Reference Index
Part NumberManufacturer
642AS1946-1 PRIMARY Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
No interchangeability data on file.
Other items in FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2840-00-004-4242
2840-00-004-4242 · Item name not on file
2840-00-021-4702
PLATE,RETAINING,TUB
2840-00-043-0981
BRACKET ASSEMBLY,TUBING
2840-00-043-0982
BRACKET ASSEMBLY,TUBING
2840-00-048-5261
2840-00-048-5261 · Item name not on file
2840-00-407-9165
DIPSTICK,ENGINE
2840-01-171-0875
SEAL,FUEL
2840-01-171-0875
SEAL,FUEL

Frequently Asked Questions

What is NSN 2840-01-274-1538?

NSN 2840-01-274-1538 is a Engine Assembly,guided Missile, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.

What part numbers are listed for NSN 2840-01-274-1538?

NSN 2840-01-274-1538 has 1 manufacturer part number on file: 642AS1946-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).

What are the specifications of 642AS1946-1?

Key specifications for 642AS1946-1: General Characteristics Item Description: TURBOJET,WHITE,HARPOON,C/O TURBOJET ENGINE J402-CA-400,INSULATION ASSEMBLY 642AS0239-1,BLEED AIR HOSE 642AS0242,29.44 IN. LG,12.52 IN. DIA. WT. 101.50 LBS,PKG AS REQUIRED LBS; Hazardous Material Classification Code: I COAST GUARD CLASS AND 1.4 DEPARTMENT OF DEFENSE HAZARD CLASS DIVISION AND F DEPARTMENT OF TRANSPORTATION CLASS AND I FIREFIGHTING GROUP AND S STORAGE COMPATIBILITY GROUP. 2 specifications are documented in the U.S. Government catalog.

Is NSN 2840-01-274-1538 hazardous material?

No hazard code in the DLA record (HMIC N). The government record also carries hazard data: DOT hazard class, UN number, or related classification fields. Special handling, storage, and shipping requirements apply per the cited government fields.

What is the DEMIL code for NSN 2840-01-274-1538?

NSN 2840-01-274-1538 has DEMIL Code G. 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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