The Seal,air,aircraft Gas Turbine En, cataloged under National Stock Number 2840-01-232-1957, 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 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2840-01-232-1957 |
| Primary Part Number | 3901T82G02 |
| 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 |
| Engine Section Location | COMPRESSOR |
| Material | STEEL 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 3901T82G02 | Metro Machine Works Inc (USA) |
| 3901T82G02 | Union Machine Co of Lynn, Inc (USA) |
| 3901T82G02 | Enjet Aero Dayton Inc (USA) |
| Reference | Meaning |
|---|---|
| 3901T82G02 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2840-01-232-1957 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 2840-01-232-1957 has 3 manufacturer part numbers on file: 3901T82G02 (Metro Machine Works Inc), 3901T82G02 (Union Machine Co of Lynn, Inc), 3901T82G02 (Enjet Aero Dayton Inc).
Key specifications for 3901T82G02: Criticality Code Justification: AGAV; Overall Length: 1.275 INCHES MINIMUM AND 1.295 INCHES MAXIMUM IN; Engine Section Location: COMPRESSOR; End Item Identification: ACFT.ENG. A10A. 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 2840-01-232-1957 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.