The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-108-6491, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-108-6491 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Terminal Quantity | 2 |
| Length | 10.562 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 120.0 AC SINGLE VOLTAGE |
| Maximum Wattage Rating in Watts | 1000.0 SINGLE VOLTAGE |
| Terminal Length | 0.656 INCHES NOMINAL IN |
| Element Connection Style | WIRE LEAD W/TERMINAL LUG |
| Heat Quantity | 3 |
| Element Radiation Spectrum | NONINFRARED |
| Width | 14.000 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 |
| Reference | Meaning |
|---|---|
| 178023 | 5/9 Secondary reference U.S. Government activity |
| A2-178023 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4520-00-108-6491 is a Heating Element,electrical,nonim, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 1680-00-171-7480, 5330-00-543-2965. Verify interchangeability with system specifications before substitution.
Key specifications for 4520-00-108-6491: Phase: SINGLE SINGLE VOLTAGE; Terminal Quantity: 2; Length: 10.562 INCHES NOMINAL IN; Voltage in Volts and Current Type: 120.0 AC SINGLE VOLTAGE. 11 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.