The Sensor,engine Coolant Temperatur, cataloged under National Stock Number 2990-01-655-4631, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is General Electric Company. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Sensor,engine Coolant Temperatur |
| FSC / FSG | 2990 — Miscellaneous Engine Accessories, Nonaircraft (FSG 29) |
| Manufacturers | General Electric Company (CAGE 07482) |
| Parameter | Value |
|---|---|
| NSN | 2990-01-655-4631 |
| Primary Part Number | 21C5513G04 |
| Item Name | Sensor,engine Coolant Temperatur |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | General Electric Company |
| 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 |
|---|---|
| 21C5513G04 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 21C5513 | D/9 Drawing number reference only General Electric Company |
NSN 2990-01-655-4631 is a Sensor,engine Coolant Temperatur, manufactured by General Electric Company, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-655-4631 has 1 manufacturer part number on file: 21C5513G04 (General Electric Company).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-659-7929. Verify interchangeability with system specifications before substitution.
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.