The Case,turbine,aircraft Gas Turbin, cataloged under National Stock Number 2840-01-173-5489, 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 Electro-Methods, L.p.. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-173-5489 |
| Primary Part Number | 740271 |
| Item Name | Case,turbine,aircraft Gas Turbin |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Electro-Methods, L.p. |
| Status | ACTIVE |
| Hardness Rating | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| Criticality Code Justification | AGAV |
| Material Document and Classification | AMS5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 39.470 INCHES MINIMUM AND 39.530 INCHES MAXIMUM IN |
| Engine Section Location | TURBINE |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
NSN 2840-01-173-5489 is a Case,turbine,aircraft Gas Turbin, manufactured by Electro-Methods, L.p., classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-173-5489 has 2 manufacturer part numbers on file: 740271 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 740271 (Electro-Methods, L.p.).
Key specifications for 740271: Hardness Rating: 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL; Criticality Code Justification: AGAV; Material Document and Classification: AMS5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Diameter: 39.470 INCHES MINIMUM AND 39.530 INCHES MAXIMUM IN. 6 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 2840-01-173-5489 has DEMIL Code Q. 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.