The Seal Ring,labyrinth,aircraft Gas, cataloged under National Stock Number 2840-00-550-7291, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-550-7291 |
| Item Name | Seal Ring,labyrinth,aircraft Gas |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Status | ACTIVE |
| Engine Section Location | TURBINE |
| 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 | X |
| Reference | Meaning |
|---|---|
| 4008T28P01 | 5/9 Secondary reference General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp |
| 4008T28P01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2840-00-550-7291 is a Seal Ring,labyrinth,aircraft Gas, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
Key specifications for 2840-00-550-7291: Overall Length: 1.125 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN; Engine Section Location: TURBINE; Part Name Assigned by Controlling Agency: SEAL,LABYRINTH,POWER TURBINE SUMP; Material: STEEL CORROSION RESISTING OVERALL. 2 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.