The Tube Assy,gearbox, cataloged under National Stock Number 2840-00-939-3341, 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. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Tube Assy,gearbox |
| FSC / FSG | 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components (FSG 28) |
| Manufacturers | Rtx Corporation Div Pratt & Whitney (CAGE 52661); Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); The United Tool & Die Company (CAGE 79043) |
| Parameter | Value |
|---|---|
| NSN | 2840-00-939-3341 |
| Primary Part Number | 502721 |
| Item Name | Tube Assy,gearbox |
| 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 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
NSN 2840-00-939-3341 is a Tube Assy,gearbox, 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 2840-00-939-3341 has 3 manufacturer part numbers on file: 502721 (Rtx Corporation Div Pratt & Whitney), 502721 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 502721 (The United Tool & Die Company).
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 2840-00-939-3341 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.