The Heating Element,electrical,immer, cataloged under National Stock Number 4520-01-624-2891, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Chromalox Inc. Government technical data includes 22 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-624-2891 |
| Primary Part Number | TMO-30315E2T2 326174 3KW480V3PH |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Chromalox Inc |
| Status | ACTIVE |
| Phase | THREE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Length | 25.25 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 480.0 AC SINGLE VOLTAGE |
| Body Style | TUBULAR, U SHAPED |
| Hole or Slot Quantity | 4 |
| Maximum Wattage Rating in Watts | 3.0 SINGLE VOLTAGE |
| Terminal Length | 1.5 INCHES NOMINAL IN |
| Element Connection Style | TERMINAL LUG |
| Terminal Box Environmental Protection | EXPLOSION RESISTANT AND MOISTURE RESISTANT |
| Mounting Method Style | TERMINAL MOUNTED |
| Heat Quantity | 3 |
| Watt Density Rating | 15.0 PER SQUARE INCH SINGLE VOLTAGE |
| Inside Diameter | 2.75 INCHES NOMINAL IN |
| Thermostat Range | +60.0 TO 250.0 FAHRENHEIT DEGF |
| Heat Control Type | THERMOSTAT |
| Element Radiation Spectrum | NONINFRARED |
| Width | 7.750 INCHES NOMINAL IN |
| Material | STEEL SHEATH |
| Hole Diameter | 0.750 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 |
| Part Number | Manufacturer |
|---|---|
| TMO-30315E2T2 326174 3KW480V3PH PRIMARY | Chromalox Inc (USA) |
NSN 4520-01-624-2891 is a Heating Element,electrical,immer, manufactured by Chromalox Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-624-2891 has 1 manufacturer part number on file: TMO-30315E2T2 326174 3KW480V3PH (Chromalox Inc).
Key specifications for TMO-30315E2T2 326174 3KW480V3PH: Phase: THREE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Length: 25.25 INCHES NOMINAL IN. 22 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.