The Seal Ring,labyrinth,aircraft Gas, cataloged under National Stock Number 2840-00-187-0669, 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 Beacon Industries, Inc. Dba Beacon Technology Co. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2840-00-187-0669 |
| Primary Part Number | 6854393 |
| Item Name | Seal Ring,labyrinth,aircraft Gas |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Beacon Industries, Inc. Dba Beacon Technology Co |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Engine Section Location | COMPRESSOR |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| 6854393 PRIMARY | Beacon Industries, Inc. Dba Beacon Technology Co (USA) |
| 6854393 PRIMARY | Lewis Machine, Llc (USA) |
| 6854393 | Ele Advanced Technologies Limited (GBR) |
| 6854393 | Rolls-Royce Corporation (USA) |
| 6854393 PRIMARY | Electro-Methods, L.p. (USA) |
| 6854393 PRIMARY | Kitco Llc (USA) |
| 6854393 PRIMARY | Aero Technology Company (USA) |
| 6854393 PRIMARY | Aircraft Components Inc (USA) |
| Reference | Meaning |
|---|---|
| 6854393 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 2840-00-187-0669 is a Seal Ring,labyrinth,aircraft Gas, manufactured by Beacon Industries, Inc. Dba Beacon Technology Co, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-187-0669 has 8 manufacturer part numbers on file: 6854393 (Beacon Industries, Inc. Dba Beacon Technology Co), 6854393 (Lewis Machine, Llc), 6854393 (Ele Advanced Technologies Limited), 6854393 (Rolls-Royce Corporation), 6854393 (Electro-Methods, L.p.) and 3 more.
Key specifications for 6854393: Criticality Code Justification: AGAV; Overall Length: 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Engine Section Location: COMPRESSOR; End Item Identification: T-56 AIRCRAFT ENGINE. 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 2840-00-187-0669 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.