The Seal,air,aircraft Gas Turbine En, cataloged under National Stock Number 2840-01-018-0479, 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 Metro Machine Works Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-018-0479 |
| Primary Part Number | 3901T82G01 |
| Item Name | Seal,air,aircraft Gas Turbine En |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Metro Machine Works Inc |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Diameter | 7.766 INCHES MINIMUM AND 7.770 INCHES MAXIMUM IN |
| Engine Section Location | COMPRESSOR |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 3901T82G01 | Metro Machine Works Inc (USA) |
| Reference | Meaning |
|---|---|
| 3901T82G01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2840-01-018-0479 is a Seal,air,aircraft Gas Turbine En, manufactured by Metro Machine Works Inc, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-018-0479 has 1 manufacturer part number on file: 3901T82G01 (Metro Machine Works Inc).
Key specifications for 3901T82G01: Criticality Code Justification: AGAV; Diameter: 7.766 INCHES MINIMUM AND 7.770 INCHES MAXIMUM IN; Overall Length: 1.300 INCHES MINIMUM AND 1.320 INCHES MAXIMUM IN; Engine Section Location: COMPRESSOR. 4 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.