The Heater,coolant,engine, cataloged under National Stock Number 2990-01-261-9815, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Dcm Manufacturing, Inc.. Government technical data includes 5 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2990-01-261-9815 |
| Primary Part Number | 650024 |
| Item Name | Heater,coolant,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Dcm Manufacturing, Inc. |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 24.0 DC |
| Automatic Temp Control | INCLUDED |
| Coolant Circulation Method | FORCED |
| Mounted Heater Switch | INCLUDED |
| Power Source for Which Designed | ELECTRICITY |
| 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 |
|---|---|
| 650024 PRIMARY | Dcm Manufacturing, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 709 1011 | 5/2 Secondary reference U.S. Government activity |
| 520HF-24V | 5/9 Secondary reference Dcm Manufacturing, Inc. |
| 520F-24V | 5/9 Secondary reference Dcm Manufacturing, Inc. |
NSN 2990-01-261-9815 is a Heater,coolant,engine, manufactured by Dcm Manufacturing, Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-261-9815 has 1 manufacturer part number on file: 650024 (Dcm Manufacturing, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 1680-01-580-8736. Verify interchangeability with system specifications before substitution.
Key specifications for 650024: Voltage in Volts and Current Type: 24.0 DC; Automatic Temp Control: INCLUDED; Coolant Circulation Method: FORCED; 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.