The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-504-2104, 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 14 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4520-01-504-2104 |
| Primary Part Number | 118-046969-010 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Chromalox Inc |
| Status | ACTIVE |
| Phase | THREE SINGLE VOLTAGE |
| Frequency in Hertz | 50.0 |
| Terminal Quantity | 2 |
| Length | 9.680 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 254.0 AC SINGLE VOLTAGE |
| Body Style | FINNED, TUBULAR, U SHAPED |
| Maximum Wattage Rating in Watts | 667.0 SINGLE VOLTAGE |
| Terminal Length | 29.375 INCHES MINIMUM AND 29.625 INCHES MAXIMUM IN |
| Element Connection Style | WIRE LEAD |
| Supplementary Features | PROPRIETARY - DRAWING NOT TO BE RELEASED WITHOUT CONSENT |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Material | NICKEL ALLOY SHEATH |
| Element Quantity | 3 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 118-046969-010 PRIMARY | Chromalox Inc (USA) |
| Reference | Meaning |
|---|---|
| 118-046969-009 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 118-046969-008 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 118-046969-010 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 004-118253-000 REV 18 ITEM 11 | 5/1 Secondary reference Chromalox Inc |
NSN 4520-01-504-2104 is a Heating Element,electrical,nonim, manufactured by Chromalox Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-504-2104 has 1 manufacturer part number on file: 118-046969-010 (Chromalox Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4520-01-515-8360, 4520-01-515-8362. Verify interchangeability with system specifications before substitution.
Key specifications for 118-046969-010: Phase: THREE SINGLE VOLTAGE; Frequency in Hertz: 50.0; Terminal Quantity: 2; Length: 9.680 INCHES NOMINAL IN. 14 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.
NSN 4520-01-504-2104 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.