The Heater,space,electric, cataloged under National Stock Number 4520-01-435-1803, 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 Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-435-1803 |
| Primary Part Number | 603866-94-D |
| Item Name | Heater,space,electric |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| Status | ACTIVE |
| Heat Delivery Rate | 406.0200 BRITISH THERMAL UNIT |
| Frequency in Hertz | 60.0 |
| Current Type | AC |
| Voltage in Volts | 115.0 |
| Heating Element Type | ELECTRIC NONIMMERSION |
| Current Rating in Amps | 1.03 |
| 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 |
|---|---|
| 603866-94-D | Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 603866-94-D | 3/9 Design control — primary reference Reliance Electric |
NSN 4520-01-435-1803 is a Heater,space,electric, manufactured by Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc., classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-435-1803 has 1 manufacturer part number on file: 603866-94-D (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4520-01-436-7156. Verify interchangeability with system specifications before substitution.
Key specifications for 603866-94-D: Heat Delivery Rate: 406.0200 BRITISH THERMAL UNIT; Frequency in Hertz: 60.0; Current Type: AC; Voltage in Volts: 115.0. 6 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.