The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-908-9947, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-00-908-9947 |
| Primary Part Number | 2555246 |
| Item Name | Heating Element,electrical,nonim |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| FSC Application Data | TORPEDO TUBE |
| Phase | SINGLE SINGLE VOLTAGE |
| Frequency in Hertz | 60.0 |
| Terminal Quantity | 2 |
| Voltage in Volts and Current Type | 120.0 AC SINGLE VOLTAGE |
| Body Style | CIRCULAR, TUBULAR, W/TERMINALS |
| Maximum Wattage Rating in Watts | 1000.0 SINGLE VOLTAGE |
| Terminal Length | 8.000 INCHES NOMINAL IN |
| Element Connection Style | WIRE LEAD |
| Outside Diameter | 12.000 INCHES NOMINAL IN |
| Heat Quantity | 1 |
| Watt Density Rating | 40.0 PER SQUARE INCH SINGLE VOLTAGE |
| Element Radiation Spectrum | NONINFRARED |
| Material | NICKEL ALLOY RESISTANCE WIRE |
| Material | MAGNESIUM RESISTANCE WIRE EMBEDDING/SUPPORT INSULATION |
| 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 |
NSN 4520-00-908-9947 is a Heating Element,electrical,nonim, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-908-9947 has 2 manufacturer part numbers on file: 2555246 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 39C491 (Wellman Thermal Systems Corp).
Key specifications for 2555246: FSC Application Data: TORPEDO TUBE; Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2. 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.