The Cooler,lubricating Oil,engine, cataloged under National Stock Number 2930-01-674-1025, is classified within Federal Supply Class 2930 (Engine Cooling System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Marvin Land Systems, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2930-01-674-1025 |
| Primary Part Number | 406-9900S |
| Item Name | Cooler,lubricating Oil,engine |
| FSC / FSG | 2930 / 29 — Engine Cooling System Components, Nonaircraft |
| Manufacturer | Marvin Land Systems, Inc. |
| 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 |
|---|---|
| 406-9900S PRIMARY | Marvin Land Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 262-8592023-001 | D/9 Drawing number reference only Naval Sea Systems Command |
| 262-8592042 FN 41 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 2930-01-674-1025 is a Cooler,lubricating Oil,engine, manufactured by Marvin Land Systems, Inc., classified under FSC 2930, Engine Cooling System Components, Nonaircraft. Status: active.
NSN 2930-01-674-1025 has 1 manufacturer part number on file: 406-9900S (Marvin Land Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-674-2278. Verify interchangeability with system specifications before substitution.
Key specifications for 406-9900S: Special Features: COOLER, HYDRAL OIL; Part Name Assigned by Controlling Agency: COOLER,LUBRICATING OIL,ENGINE. 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.