The Bracket,diffuser Duct, cataloged under National Stock Number 2840-00-939-3402, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-939-3402 |
| Primary Part Number | 519541 |
| Item Name | Bracket,diffuser Duct |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| FSC Application Data | AIRCRAFT JET ENGINE,TF30 |
| General Characteristics Item Description | STEEL,AMS 6355,2.602 IN. LG,0.438 IN. MATERIAL W,1.452 IN. OVERALLW,0.063 IN. THK,ROCKWELL C30-38 HARDNESS,CADMIUM PLATED PER AMS 2400,THREE 0.250 IN. DIA MOUNTING HOLES ONE IN ENDS AND ONE IN CENTER IN |
| 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 |
|---|---|
| 519541 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 2840-00-939-3402 is a Bracket,diffuser Duct, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-939-3402 has 1 manufacturer part number on file: 519541 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 1377-01-384-1579. Verify interchangeability with system specifications before substitution.
Key specifications for 519541: FSC Application Data: AIRCRAFT JET ENGINE,TF30; General Characteristics Item Description: STEEL,AMS 6355,2.602 IN. LG,0.438 IN. MATERIAL W,1.452 IN. OVERALLW,0.063 IN. THK,ROCKWELL C30-38 HARDNESS,CADMIUM PLATED PER AMS 2400,THREE 0.250 IN. DIA MOUNTING HOLES ONE IN ENDS AND ONE IN CENTER IN. 2 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 2840-00-939-3402 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.