The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-084-0492, 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 Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-084-0492 |
| Primary Part Number | 285-054039-999-057 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Length | 4.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 120.0 AC SINGLE VOLTAGE |
| Body Style | STRIP ELEMENT |
| Hole or Slot Quantity | 2 |
| Maximum Wattage Rating in Watts | 125.0 SINGLE VOLTAGE |
| Terminal Length | 0.325 INCHES NOMINAL IN |
| Mounting Facility Length | 5.500 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Effective Heating Length | 4.000 INCHES NOMINAL IN |
| Mounting Method Style | SLOT OR HOLE TYPE MOUNTING FACILITY |
| Heat Quantity | 1 |
| Terminal Arrangement Style | ONE AT EACH END |
| Element Radiation Spectrum | NONINFRARED |
| Width | 1.495 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 4.500 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING SHEATH |
| Mounting Facility Width | 1.495 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 |
|---|---|
| 1274-299 | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
| 285-054039-999-057 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| Reference | Meaning |
|---|---|
| 285-054039-999-057 | 5/9 Secondary reference Emerson Electric Co Electro-Air Div |
NSN 4520-01-084-0492 is a Heating Element,electrical,nonim, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-084-0492 has 2 manufacturer part numbers on file: 1274-299 (Bae Systems Information and Electronic Systems Integration Inc.), 285-054039-999-057 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).
Key specifications for 285-054039-999-057: Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Length: 4.000 INCHES NOMINAL IN. 21 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.