The Shield,heat,aircraft Gas Turbine, cataloged under National Stock Number 2840-00-698-8990, 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 Johns Manville Intl. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-698-8990 |
| Primary Part Number | BL566 |
| Item Name | Shield,heat,aircraft Gas Turbine |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Johns Manville Intl |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Engine Section Location | TURBINE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| BL566 PRIMARY | Johns Manville Intl (USA) |
| Reference | Meaning |
|---|---|
| AC27-105 | 5/9 Secondary reference U.S. Government activity |
| 33-21229A | 5/9 Secondary reference Tex-Tech Engineered Composites, Llc |
NSN 2840-00-698-8990 is a Shield,heat,aircraft Gas Turbine, manufactured by Johns Manville Intl, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-698-8990 has 1 manufacturer part number on file: BL566 (Johns Manville Intl).
Key specifications for BL566: Criticality Code Justification: AGAV; Engine Section Location: TURBINE; Special Features: T.O. 2J-T56-14; GOES ON THE REAR TURBINE BEARING; End Item Identification: T56 AIRCRAFT ENGINE. 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.
NSN 2840-00-698-8990 has DEMIL Code D. 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.