The Heating Element,oil, cataloged under National Stock Number 4520-01-506-7446, 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 Royston Limited. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-506-7446 |
| Primary Part Number | OE650400-000 |
| Item Name | Heating Element,oil |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Royston Limited |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 480.0 DC |
| Wattage Rating | 500.000 WATTS |
| Current Rating | 1.000 AMPERES |
| 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 |
|---|---|
| OE650400-000 | Royston Limited (GBR) |
| Reference | Meaning |
|---|---|
| OE650400-000 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4520-01-506-7446 is a Heating Element,oil, manufactured by Royston Limited, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-506-7446 has 1 manufacturer part number on file: OE650400-000 (Royston Limited).
Key specifications for OE650400-000: Voltage in Volts and Current Type: 480.0 DC; Wattage Rating: 500.000 WATTS; Special Features: 1 IN. NPT THREAD WITH A 5-1/4 IN. PROBE LENGTH; 260 WATTS PER SQUARE INCH; 15 TO 30 GAL OIL CAPACITY IN; Current Rating: 1.000 AMPERES. 3 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.