The Seal,air,aircraft Gas Turbine En, cataloged under National Stock Number 2840-01-216-0448, 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 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-216-0448 |
| Primary Part Number | 4064308 |
| Item Name | Seal,air,aircraft Gas Turbine En |
| 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 |
| Stage Number | 1 |
| Criticality Code Justification | MATT AND CZBJ AND CZCJ AND ABHP AND ABMZ |
| Material Document and Classification | AMS5687 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 56.860 INCHES MINIMUM AND 56.960 INCHES MAXIMUM IN |
| Engine Section Location | TURBINE |
| Material | NICKEL ALLOY OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 4064308 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4064308 | Rtx Corporation Div Pratt & Whitney (USA) |
| Reference | Meaning |
|---|---|
| 4064308 | 5/9 Secondary reference Paradigm Manchester Inc. Dba Pursuit Aerospace |
| 2840PL0664280 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 4064308 | 5/9 Secondary reference Enjet Aero Bloomfield, Llc |
| 4064208 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
NSN 2840-01-216-0448 is a Seal,air,aircraft Gas Turbine En, 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 2840-01-216-0448 has 2 manufacturer part numbers on file: 4064308 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4064308 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 4064308: Stage Number: 1; Criticality Code Justification: MATT AND CZBJ AND CZCJ AND ABHP AND ABMZ; Material Document and Classification: AMS5687 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Diameter: 56.860 INCHES MINIMUM AND 56.960 INCHES MAXIMUM IN. 6 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 2840-01-216-0448 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.