The Flange,diffuser Case, cataloged under National Stock Number 2840-01-160-1142, 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 3 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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 | 2840-01-160-1142 |
| Primary Part Number | 624652 |
| Item Name | Flange,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 |
| Overall Diameter | 29.950 INCHES MINIMUM AND 29.970 INCHES MAXIMUM IN |
| Criticality Code Justification | AGAV |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
NSN 2840-01-160-1142 is a Flange,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 2840-01-160-1142 has 4 manufacturer part numbers on file: 624652 (Drt Aerospace, Llc), 624652 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 624652 (Unison Engine Components, Inc. Dba Unison Engine Components), 624652 (Rtx Corporation Div Pratt & Whitney).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-703-3037. Verify interchangeability with system specifications before substitution.
Key specifications for 624652: Overall Diameter: 29.950 INCHES MINIMUM AND 29.970 INCHES MAXIMUM IN; Criticality Code Justification: AGAV; Overall Width: 2.070 INCHES MINIMUM AND 2.090 INCHES MAXIMUM IN; End Item Identification: ACFT ENG TF33. 3 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 2840-01-160-1142 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.