The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-134-8946, 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 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-134-8946 |
| Primary Part Number | TB3818-120V250W |
| 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 |
| Shielding Length | 8.000 INCHES NOMINAL IN |
| Phase | SINGLE SINGLE VOLTAGE |
| Terminal Quantity | 2 |
| Length | 3.000 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 120.0 AC SINGLE VOLTAGE |
| Body Style | TUBULAR, PLAIN |
| Maximum Wattage Rating in Watts | 250.0 SINGLE VOLTAGE |
| Terminal Length | 10.000 INCHES NOMINAL IN |
| Element Connection Style | SHIELDED WIRE LEAD |
| Outside Diameter | 0.375 INCHES NOMINAL IN |
| Heat Quantity | 1 |
| Element Radiation Spectrum | NONINFRARED |
| Material | MAGNESIUM OXIDE RESISTANCE WIRE EMBEDDING/SUPPORT INSULATION |
| Material | NICKEL ALLOY RESISTANCE WIRE |
| Material | NICKEL AND CHROMIUM SHEATH |
| 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 |
|---|---|
| 2846171 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| TB3818-120V250W PRIMARY | Vulcan Electric Co Div Vulcan Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 2846171 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 4520-00-134-8946 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 4520-00-134-8946 has 2 manufacturer part numbers on file: 2846171 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), TB3818-120V250W (Vulcan Electric Co Div Vulcan Electric Company).
Key specifications for TB3818-120V250W: Shielding Length: 8.000 INCHES NOMINAL IN; Phase: SINGLE SINGLE VOLTAGE; Terminal Quantity: 2; Length: 3.000 INCHES NOMINAL IN. 16 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.