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NSN 2840-00-040-3499Government record, cited

Block2840-00-040-3499

NSN 2840-00-040-3499 · NIIN 000403499 · Part number 6720852
Allison Transmission Inc Dba Allison Transmission, Inc · FSC 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · FSG 28 — Engines, Turbines, and Components · CAGE 73342
Government record, cited
NSN 2840-00-040-3499 — this item is cataloged by the U.S. Government under National Stock Number 2840-00-040-3499. Manufacturer of record part number: 6720852.
Also searched as  2840-00-040-3499 · 2840000403499 · NIIN 000403499 · 00-040-3499 · FSC 2840 Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components · CAGE 73342 · 6720852
Nearby stock numbers  ·
Features
  • Block — FSC 2840
  • 1 manufacturer part number on file
  • Manufacturer of record: Allison Transmission Inc Dba Allison Transmission, Inc
Identification
  • NSN: 2840-00-040-3499
  • NIIN: 000403499
  • FSC: 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
  • FSG: 28 — Engines, Turbines, and Components
  • Primary part number: 6720852
  • Manufacturer: Allison Transmission Inc Dba Allison Transmission, Inc
General Description

The Block, cataloged under National Stock Number 2840-00-040-3499, 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 Allison Transmission Inc Dba Allison Transmission, Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Catalog Facts
Item NameBlock
FSC / FSG2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components (FSG 28)
ManufacturersAllison Transmission Inc Dba Allison Transmission, Inc (CAGE 73342)
Technical Specifications
ParameterValue
NSN2840-00-040-3499
Primary Part Number6720852
Item NameBlock
FSC / FSG2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components
ManufacturerAllison Transmission Inc Dba Allison Transmission, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Cross-Reference Index
Part NumberManufacturer
6720852 PRIMARY Allison Transmission Inc Dba Allison Transmission, Inc (USA)
Reference documents
ReferenceMeaning
6720852 5/9 Secondary reference
General Motors Corp
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 2840-00-040-3499?

NSN 2840-00-040-3499 is a Block, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.

What part numbers are listed for NSN 2840-00-040-3499?

NSN 2840-00-040-3499 has 1 manufacturer part number on file: 6720852 (Allison Transmission Inc Dba Allison Transmission, Inc).

Is NSN 2840-00-040-3499 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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