The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-122-4185, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4520-01-122-4185 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Phase | THREE SINGLE VOLTAGE |
| Frequency in Hertz | 50.0 |
| Terminal Quantity | 2 |
| Voltage in Volts and Current Type | 440.0 AC SINGLE VOLTAGE |
| Maximum Wattage Rating in Watts | 2000.0 OR 4000.0 SINGLE VOLTAGE |
| Element Connection Style | HERMETICALLY SEALED STUD |
| Mounting Method Style | FLANGE TYPE MOUNTING FACILITY |
| Heat Quantity | 1 |
| Thermostat Range | +190.0 TO 350.0 FAHRENHEIT DEGF |
| Heat Control Type | THERMOSTAT |
| Element Radiation Spectrum | NONINFRARED |
| Material | STEEL CORROSION RESISTING SHEATH |
| Element Quantity | 6 |
| 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 |
|---|---|
| 78-0808-4PC8 | 5/9 Secondary reference Valad Electric Heating Corp. |
| BH-7-44-3 | 3/9 Design control — primary reference Valad Electric Heating Corp. |
| 78-0808-3 | 5/9 Secondary reference Valad Electric Heating Corp. |
| 83-0701 | 5/9 Secondary reference Valad Electric Heating Corp. |
| 83-0701-8 | 5/9 Secondary reference Valad Electric Heating Corp. |
| 78-0808-3PC8 | 5/9 Secondary reference Valad Electric Heating Corp. |
| 78-0808-4 | 5/9 Secondary reference Valad Electric Heating Corp. |
NSN 4520-01-122-4185 is a Heating Element,electrical,nonim, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4320-01-183-9433. Verify interchangeability with system specifications before substitution.
Key specifications for 4520-01-122-4185: Phase: THREE SINGLE VOLTAGE; Frequency in Hertz: 50.0; Terminal Quantity: 2; Voltage in Volts and Current Type: 440.0 AC SINGLE VOLTAGE. 13 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.