The Heat Shield,exhaust, cataloged under National Stock Number 2990-01-506-1908, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Polartherm Oy Dba Thermogate. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-506-1908 |
| Primary Part Number | 2112-127 |
| Item Name | Heat Shield,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Polartherm Oy Dba Thermogate |
| Status | ACTIVE |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2112-127 | Polartherm Oy Dba Thermogate (FIN) |
| Reference | Meaning |
|---|---|
| 2112-127 | 3/9 Design control — primary reference Polartherm Oy |
NSN 2990-01-506-1908 is a Heat Shield,exhaust, manufactured by Polartherm Oy Dba Thermogate, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-506-1908 has 1 manufacturer part number on file: 2112-127 (Polartherm Oy Dba Thermogate).
Key specifications for 2112-127: Overall Height: 0.200 INCHES MAXIMUM IN; Overall Length: 11.420 INCHES MAXIMUM IN; Overall Width: 3.940 INCHES MAXIMUM IN; Special Features: LOWER SHIELD. 1 specification is 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.