The Heating Element,electrical,immer, cataloged under National Stock Number 4520-00-005-5040, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-005-5040 |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Flange Diameter | 7.500 INCHES NOMINAL IN |
| Phase | NOT RATED SINGLE VOLTAGE |
| Frequency in Hertz | 50.0 AND 60.0 |
| Terminal Quantity | 6 |
| Length | 48.063 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 480.0 AC SINGLE VOLTAGE |
| Body Style | TUBULAR, FLANGED, W/TERMINALS |
| Hole or Slot Quantity | 4 |
| Flange Thickness | 0.938 INCHES NOMINAL IN |
| Maximum Wattage Rating in Watts | 18000.0 SINGLE VOLTAGE |
| Terminal Length | 0.813 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Effective Heating Length | 48.063 INCHES NOMINAL IN |
| Mounting Method Style | FLANGE TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.190 INCHES STUD IN |
| Heat Quantity | 1 |
| Bolt Circle Diameter | 6.000 INCHES NOMINAL IN |
| Element Radiation Spectrum | NONINFRARED |
| Thread Series Designator | UNF STUD |
| Thread Quantity | 32.0 PER INCH STUD |
| Hole Diameter | 0.750 INCHES NOMINAL IN |
| Element Quantity | 3 |
| 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 |
|---|---|
| 14-13258-3PD | 5/9 Secondary reference Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| 155-013258-014 | 3/9 Design control — primary reference Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
NSN 4520-00-005-5040 is a Heating Element,electrical,immer, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
Key specifications for 4520-00-005-5040: Flange Diameter: 7.500 INCHES NOMINAL IN; Phase: NOT RATED SINGLE VOLTAGE; Frequency in Hertz: 50.0 AND 60.0; Terminal Quantity: 6. 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.