The Turbocharger,engine, cataloged under National Stock Number 2990-01-121-5182, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Mermaid Marine Engines Ltd. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-121-5182 |
| Primary Part Number | 49046 |
| Item Name | Turbocharger,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Mermaid Marine Engines Ltd |
| 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 |
|---|---|
| 49046 | Mermaid Marine Engines Ltd (GBR) |
| Reference | Meaning |
|---|---|
| H3502596 | 5/9 Secondary reference Delphi Powertrain Systems, Llc |
| H3502596 | 3/9 Design control — primary reference Holset Engineering Co Inc Sub of Cummins Engine Co |
| H3502596 | 5/9 Secondary reference Wengers Farm Machinery Inc |
| H3502596 | 5/9 Secondary reference Penn Diesel Service Co |
| 182039 | 5/9 Secondary reference Wengers Farm Machinery Inc |
| 49046 | 5/9 Secondary reference Sabre Engines Ltd |
NSN 2990-01-121-5182 is a Turbocharger,engine, manufactured by Mermaid Marine Engines Ltd, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-121-5182 has 1 manufacturer part number on file: 49046 (Mermaid Marine Engines Ltd).
2 possible matches (shared part number, not a government interchangeability claim): 5961-01-276-8275, 5331-01-498-2275. Verify interchangeability with system specifications before substitution.
Key specifications for 49046: End Item Identification: 1940-01-105-5728. 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.