The Rotor,turbine,aircraft Gas Turbi, cataloged under National Stock Number 2840-01-034-4661, 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 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-034-4661 |
| Primary Part Number | 6886407 |
| Item Name | Rotor,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 |
| Material Document and Classification | CRES, EMS73646-1 CAGE 73342 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
NSN 2840-01-034-4661 is a Rotor,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 2840-01-034-4661 has 2 manufacturer part numbers on file: 6886407 (Allison Transmission Inc Dba Allison Transmission, Inc), 6886407 (Rolls-Royce Corporation).
Key specifications for 6886407: Material Document and Classification: CRES, EMS73646-1 CAGE 73342 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Overall Length: 2.734 INCHES MINIMUM AND 2.736 INCHES MAXIMUM IN; Special Features: 38 BLADES; 6.189 MIN 6.192 MAX IN. O/A OD; 1ST END STEPPED HUB; EXT THD 1ST STEP 1ST END, 3/4-20 UNJEF SERIES CL 3A THD, LH; 0.375 IN. NOM LG 1ST STEP 1ST END; 0.66 IN. NOM OD 2ND STEP 1ST END; 0.125 IN. NOM LG 2ND STEP 1ST END; 0.7874 MIN 0.7876 MAX IN. OD 3RD STEP 1ST END; 0.6 IN. NOM LG 3RD STEP 1ST END; 2 CIRCULAR GROOVES ON OD 3RD STEP 1ST END; 0.1 IN. NOM W BY 0.75 IN. NOM DIA GROOVES; 0.8195 MIN 0.82 MAX IN. OD 4TH STEP 1ST END; 0.47 IN. NOM LG 4TH STEP 1ST END; 1 CIRCULAR GROOVE LOCATED ON OD 4TH STEP 1ST END; 0.2 IN. NOM W BY 0.75 IN. NOM DIA GROOVE; 0.92 IN. MAX LG 5TH STEP 1ST END; 2ND END GROOVED HUB; 1.809 MIN 1.811 MAX IN. O/A OD HUB; 0.318 MIN 0.326 MAX IN. LG FROM 2ND END TO DISK; 2 CIRCULAR U-GROOVES ON OD HUB; 0.07 IN. NOM W BY 1.65 IN. NOM DIA GROOVES; STEPPED ID 0.52 MIN 0.522 MAX IN. ID COUNTERSUNK 60 DEG TO 0.575 A. 1 specification is 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 2840-01-034-4661 has DEMIL Code D. 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.