The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-490-1042, 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13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4520-00-490-1042 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| FSC Application Data | FREQUENCY MEASURING UNIT,RECEIVER,COUNTERMEASURES |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 400.0 |
| Terminal Quantity | 2 |
| Length | 3.938 INCHES MINIMUM AND 4.062 INCHES MAXIMUM IN |
| Voltage in Volts and Current Type | 118.0 AC SINGLE VOLTAGE |
| Terminal Length | 12.000 INCHES MINIMUM IN |
| Element Connection Style | WIRE LEAD |
| Terminal Arrangement Style | PARALLEL AT ONE END EXCEPT ON 3/4 AND 1 INCH WIDTH IN |
| Element Radiation Spectrum | NONINFRARED |
| Width | 0.969 INCHES MINIMUM AND 1.031 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC RESISTANCE WIRE EMBEDDING/SUPPORT INSULATION |
| 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 |
|---|---|
| 377-105 | 3/9 Design control — primary reference Manufacturer's Commercial Finance, Llc Dba Electro-Flex Heat |
| 203313-001 | 5/9 Secondary reference U.S. Government activity |
NSN 4520-00-490-1042 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): 5998-01-442-8543. Verify interchangeability with system specifications before substitution.
Key specifications for 4520-00-490-1042: FSC Application Data: FREQUENCY MEASURING UNIT,RECEIVER,COUNTERMEASURES; Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 400.0; Terminal Quantity: 2. 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.