The Heater,air Duct,engine, cataloged under National Stock Number 2990-01-457-7405, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2990-01-457-7405 |
| Primary Part Number | 159-3537 |
| Item Name | Heater,air Duct,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| 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 |
|---|---|
| 159-3537 | Westrac Equipment Pty Ltd (AUS) |
| 159-3537 | William Adams Pty Ltd (AUS) |
| 0735708 | General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CHE) |
| 159-3537 | Hastings Deering (aust) Pty Ltd (AUS) |
| 159-3537 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 159-3537 | 5/9 Secondary reference Caterpillar of Australia Pty Ltd |
NSN 2990-01-457-7405 is a Heater,air Duct,engine, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-457-7405 has 5 manufacturer part numbers on file: 159-3537 (Westrac Equipment Pty Ltd), 159-3537 (William Adams Pty Ltd), 0735708 (General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels), 159-3537 (Hastings Deering (aust) Pty Ltd), 159-3537 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 159-3537: Special Features: CAPACITY: 1.892 KW, RATED AT DC 22 V, 86 AMPS V; End Item Identification: 2430-01-423-2819. 0 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.