The Seal,air,aircraft Gas Turbine En, cataloged under National Stock Number 2840-00-795-1495, 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 Union Machine Co of Lynn, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-795-1495 |
| Primary Part Number | 646C574P4 |
| Item Name | Seal,air,aircraft Gas Turbine En |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Union Machine Co of Lynn, Inc |
| Status | ACTIVE |
| Stage Number | 1 |
| Design Type | COMPRESSOR |
| Criticality Code Justification | AGAV |
| Engine Section Location | COMPRESSOR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 646C574P4 | Union Machine Co of Lynn, Inc (USA) |
| Reference | Meaning |
|---|---|
| 646C574P4 | 5/9 Secondary reference Enjet Aero Malden, Llc |
| 646C574P4 | 5/9 Secondary reference Dynatech International Llc |
| 646C574P4 | 3/2 Design control — primary reference U.S. Government activity |
| 646C574P4 | 5/9 Secondary reference General Electric Company |
NSN 2840-00-795-1495 is a Seal,air,aircraft Gas Turbine En, manufactured by Union Machine Co of Lynn, Inc, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-795-1495 has 1 manufacturer part number on file: 646C574P4 (Union Machine Co of Lynn, Inc).
Key specifications for 646C574P4: Stage Number: 1; Design Type: COMPRESSOR; Criticality Code Justification: AGAV; 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.