The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-264-9397, 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 Vulcan Electric Co Div Vulcan Electric Company. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4520-01-264-9397 |
| Primary Part Number | D12/5200/7-12 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Vulcan Electric Co Div Vulcan Electric Company |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Terminal Quantity | 2 |
| Length | 6.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 122.5 AC SINGLE VOLTAGE |
| Body Style | STRIP ELEMENT |
| Hole or Slot Quantity | 2 |
| Maximum Wattage Rating in Watts | 250.0 SINGLE VOLTAGE |
| Terminal Length | 0.630 INCHES NOMINAL IN |
| Mounting Facility Length | 0.500 INCHES NOMINAL IN |
| Element Connection Style | HERMETICALLY SEALED STUD |
| Effective Heating Length | 6.000 INCHES NOMINAL IN |
| Mounting Method Style | SLOT OR HOLE TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.190 INCHES STUD IN |
| Heat Quantity | 1 |
| Terminal Arrangement Style | PARALLEL AT ONE END EXCEPT ON 3/4 AND 1 INCH WIDTH IN |
| Watt Density Rating | 30.0 PER SQUARE INCH SINGLE VOLTAGE |
| Element Radiation Spectrum | NONINFRARED |
| Width | 1.500 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 7.000 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING SHEATH |
| Thread Series Designator | UNF STUD |
| Mounting Facility Width | 0.310 INCHES NOMINAL IN |
| Thread Quantity | 32.0 PER INCH STUD |
| 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 |
|---|---|
| D12/5200/7-12 PRIMARY | Vulcan Electric Co Div Vulcan Electric Company (USA) |
| 5546661-2 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5546661 | 7/1 Vendor item drawing reference Naval Sea Systems Command |
NSN 4520-01-264-9397 is a Heating Element,electrical,nonim, manufactured by Vulcan Electric Co Div Vulcan Electric Company, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-264-9397 has 2 manufacturer part numbers on file: D12/5200/7-12 (Vulcan Electric Co Div Vulcan Electric Company), 5546661-2 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 4520-01-264-9398, 4520-01-264-9399, 4520-01-270-2442. Verify interchangeability with system specifications before substitution.
Key specifications for D12/5200/7-12: Phase: SINGLE SINGLE VOLTAGE; Terminal Quantity: 2; Length: 6.000 INCHES NOMINAL IN; Voltage in Volts and Current Type: 122.5 AC SINGLE VOLTAGE. 24 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.