The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-333-2846, 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 Wellman Thermal Systems Corp. Government technical data includes 24 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-333-2846 |
| Primary Part Number | FS1052 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Wellman Thermal Systems Corp |
| Status | ACTIVE |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Length | 14.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 240.0 AC THIRD VOLTAGE |
| Body Style | STRIP, FINNED |
| Hole or Slot Quantity | 2 |
| Maximum Wattage Rating in Watts | 500.0 SINGLE VOLTAGE |
| Terminal Length | 0.562 INCHES NOMINAL IN |
| Mounting Facility Length | 0.625 INCHES NOMINAL IN |
| Element Connection Style | STUD TYPE |
| Mounting Method Style | SLOT OR HOLE TYPE MOUNTING FACILITY |
| Nominal Thread Size | 0.190 INCHES STUD IN |
| Heat Quantity | 1 |
| Terminal Arrangement Style | OFFSET OR STAGGERED AT ONE END |
| Watt Density Rating | 12.1 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 | 14.120 INCHES NOMINAL IN |
| Material | STEEL SHEATH |
| Thread Series Designator | UNF STUD |
| Mounting Facility Width | 0.281 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 |
|---|---|
| FS1052 PRIMARY | Wellman Thermal Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| SC4540-0003-2 | 5/9 Secondary reference Drs Icas, Llc |
| SC4540-0003 | 5/9 Secondary reference Drs Icas, Llc |
NSN 4520-01-333-2846 is a Heating Element,electrical,nonim, manufactured by Wellman Thermal Systems Corp, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-333-2846 has 1 manufacturer part number on file: FS1052 (Wellman Thermal Systems Corp).
Key specifications for FS1052: Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Length: 14.000 INCHES NOMINAL IN. 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.