The Cover,diffuser Case, cataloged under National Stock Number 2840-00-444-4940, 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 Paradigm Manchester Inc. Dba Pursuit Aerospace. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 2840-00-444-4940 |
| Primary Part Number | 622437 |
| Item Name | Cover,diffuser Case |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Paradigm Manchester Inc. Dba Pursuit Aerospace |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 622437 PRIMARY | Paradigm Manchester Inc. Dba Pursuit Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 622437 | 5/9 Secondary reference Gould E a and Co |
| 622437 | 5/9 Secondary reference Dynamic Gunver Technologies Llc |
| 622437 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 622437 | 5/9 Secondary reference Dynamic Metal Products Co Inc |
| 622437 | 5/9 Secondary reference Parmac Inc |
NSN 2840-00-444-4940 is a Cover,diffuser Case, manufactured by Paradigm Manchester Inc. Dba Pursuit Aerospace, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-444-4940 has 1 manufacturer part number on file: 622437 (Paradigm Manchester Inc. Dba Pursuit Aerospace).
Key specifications for 622437: End Item Identification: ENG J-57. 0 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.
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.