The Heater,air Duct,engine, cataloged under National Stock Number 2990-01-506-2085, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Ngh Retail Llc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2990-01-506-2085 |
| Primary Part Number | 2112-69300 |
| Item Name | Heater,air Duct,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Ngh Retail Llc |
| Status | ACTIVE |
| Integral Fuel Tank | INCLUDED |
| Air Duct Connection Quantity | 3 |
| Fuel Type | DIESEL |
| Mounted Heater Switch | INCLUDED |
| Pump | INCLUDED |
| 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 |
|---|---|
| 2112-69300 PRIMARY | Ngh Retail Llc (USA) |
| 2112-69300 | Polartherm Oy Dba Thermogate (FIN) |
| Reference | Meaning |
|---|---|
| 2112-69300 | 3/9 Design control — primary reference Polartherm Oy |
NSN 2990-01-506-2085 is a Heater,air Duct,engine, manufactured by Ngh Retail Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-506-2085 has 2 manufacturer part numbers on file: 2112-69300 (Ngh Retail Llc), 2112-69300 (Polartherm Oy Dba Thermogate).
Key specifications for 2112-69300: Integral Fuel Tank: INCLUDED; Air Duct Connection Quantity: 3; Fuel Type: DIESEL; Mounted Heater Switch: INCLUDED. 5 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.