The Cover,diffuser Case, cataloged under National Stock Number 2840-00-800-3949, 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 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Cover,diffuser Case |
| FSC / FSG | 2840 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components (FSG 28) |
| Manufacturers | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); Warfighter Focused Logistics Inc (CAGE 82T87); Pratt and Whitney Services Inc Dba Pratt and Whitney Services Inc Dallas Aerospace Opns (CAGE 0KEG8); Aero Components, Llc (CAGE 59213) |
| Parameter | Value |
|---|---|
| NSN | 2840-00-800-3949 |
| Primary Part Number | 431919 |
| Item Name | Cover,diffuser Case |
| 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 Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 431919 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 431919 | Warfighter Focused Logistics Inc (USA) |
| 431919 | Pratt and Whitney Services Inc Dba Pratt and Whitney Services Inc Dallas Aerospace Opns (USA) |
| 431919 | Aero Components, Llc (USA) |
| Reference | Meaning |
|---|---|
| 431919 | 5/9 Secondary reference Tss Technologies, Inc. Dba Tss Medical |
| 431919 | 5/9 Secondary reference Enjet Aero Bloomfield, Llc |
| 431919 | 5/9 Secondary reference Ambel Precision Manufacturing Corporation |
| 431919 | 5/9 Secondary reference Electro-Methods, L.p. |
| 431919 | 5/9 Secondary reference Chromalloy San Diego Corp |
NSN 2840-00-800-3949 is a Cover,diffuser Case, 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 2840-00-800-3949 has 4 manufacturer part numbers on file: 431919 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 431919 (Warfighter Focused Logistics Inc), 431919 (Pratt and Whitney Services Inc Dba Pratt and Whitney Services Inc Dallas Aerospace Opns), 431919 (Aero Components, Llc).
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 2840-00-800-3949 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.