The Seal,metallic,aircraft Gas Turbi, cataloged under National Stock Number 2840-01-021-1680, 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 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-021-1680 |
| Primary Part Number | 815920 |
| Item Name | Seal,metallic,aircraft Gas Turbi |
| 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 |
| Design Type | AXIAL COMPRESSOR |
| Criticality Code Justification | MATT AND CZBJ AND ABHP AND ABMZ AND FEAT |
| Diameter | 7.623 INCHES MINIMUM AND 7.625 INCHES MAXIMUM IN |
| Engine Section Location | TURBINE |
| Material | GRAPHITE 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 |
|---|---|
| 815920 | Rtx Corporation Div Pratt & Whitney (USA) |
| 815920 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 553514 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| 553514 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 2840-01-021-1680 is a Seal,metallic,aircraft Gas Turbi, 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 2840-01-021-1680 has 2 manufacturer part numbers on file: 815920 (Rtx Corporation Div Pratt & Whitney), 815920 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 815920: Design Type: AXIAL COMPRESSOR; Criticality Code Justification: MATT AND CZBJ AND ABHP AND ABMZ AND FEAT; Diameter: 7.623 INCHES MINIMUM AND 7.625 INCHES MAXIMUM IN; Overall Length: 1.117 INCHES MINIMUM AND 1.123 INCHES MAXIMUM IN. 5 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 2840-01-021-1680 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.