The Shaft,turbine,aircraft Gas Turbi, cataloged under National Stock Number 2840-01-134-2691, 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. Government technical data includes 5 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.
| Parameter | Value |
|---|---|
| NSN | 2840-01-134-2691 |
| Primary Part Number | 23001903 |
| Item Name | Shaft,turbine,aircraft Gas Turbi |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | AMS 2405 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Hardness Rating | 92.0 ROCKWELL SUPERFICIAL 15-N MINIMUM OUTER CASE |
| Material Document and Classification | EMS 64500 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | NICKEL OVERALL |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 23001903 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
NSN 2840-01-134-2691 is a Shaft,turbine,aircraft Gas Turbi, 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.
NSN 2840-01-134-2691 has 1 manufacturer part number on file: 23001903 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 23001903: Surface Treatment Document and Classification: AMS 2405 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Hardness Rating: 92.0 ROCKWELL SUPERFICIAL 15-N MINIMUM OUTER CASE; Material Document and Classification: EMS 64500 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Overall Length: 3.700 INCHES NOMINAL IN. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 2840-01-134-2691 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.