The Heating Element,electrical,immer, cataloged under National Stock Number 2590-00-404-7331, is classified within Federal Supply Class 2590 (Miscellaneous Vehicular Components) of the Vehicular Equipment Components group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2590-00-404-7331 |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 2590 / 25 — Miscellaneous Vehicular Components |
| Status | ACTIVE |
| Flange Diameter | 7.500 INCHES NOMINAL IN |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Length | 23.500 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 240.0 AC SECOND VOLTAGE |
| Voltage in Volts and Current Type | 208.0 AC FIRST VOLTAGE |
| Body Style | FLANGE, TYPE |
| Hole or Slot Quantity | 8 |
| Flange Thickness | 0.750 INCHES NOMINAL IN |
| Maximum Wattage Rating in Watts | 1200.0 SINGLE VOLTAGE |
| Element Connection Style | TERMINAL SCREW |
| Effective Heating Length | 19.500 INCHES NOMINAL IN |
| Terminal Box Environmental Protection | MOISTURE RESISTANT |
| Mounting Method Style | FLANGE TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.164 INCHES SCREW IN |
| Heat Quantity | 1 |
| Heat Control Type | THERMOCOUPLE |
| Conduit Opening Size | 1.500 INCHES NOMINAL IN |
| Element Radiation Spectrum | NONINFRARED |
| Material | COPPER SHEATH |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW |
| Thread Quantity | 32.0 PER INCH SCREW |
| Hole Diameter | 0.500 INCHES NOMINAL IN |
| Element Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 24C76-39D4-440 | 3/9 Design control — primary reference Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
NSN 2590-00-404-7331 is a Heating Element,electrical,immer, classified under FSC 2590, Miscellaneous Vehicular Components. Status: active.
Key specifications for 2590-00-404-7331: Flange Diameter: 7.500 INCHES NOMINAL IN; Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2. 25 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.