The Heater,space, cataloged under National Stock Number 4520-00-778-7136, 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 Hall Industries Inc. Government technical data includes 23 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4520-00-778-7136 |
| Primary Part Number | 600 |
| Item Name | Heater,space |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Hall Industries Inc |
| Status | ACTIVE |
| Speed Adjustments | SINGLE SPEED |
| Heat Delivery Rate | 60000.0 BRITISH THERMAL UNIT |
| Phase | SINGLE |
| Frequency in Hertz | 50.0 OR 60.0 |
| Current Type | AC |
| Quantity | 1 |
| Voltage in Volts | 120.0 |
| Fuel Type | DF-A ARCTIC DIESEL FUEL OIL AND DF-1 WINTER DIESEL FUEL OIL AND DF-2 REGULAR DIESEL FUEL OIL AND 80/87 OCTANE GASOLINE AND 91/96 OCTANE GASOLINE |
| Specification/standard Data | 81349-MIL-H-11511 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 1 TYPE |
| Height | 21.188 INCHES NOMINAL IN |
| Air Circulation Device | PROPELLER FAN |
| Surface Treatment | PAINT |
| Depth | 11.062 INCHES NOMINAL IN |
| Width | 28.375 INCHES NOMINAL IN |
| Flue Connection Location | ON RIGHT SIDE 17.000 IN FROM FLOOR IN |
| Prime Mover Type | ELECTRIC MOTOR |
| Circulated Air Type | HEATED |
| Ignition Method | ELECTRODE |
| Mounting Type | FLOOR SURFACE, FREE STANDING, NONDUCTED |
| Fuel Feed Method | GRAVITY |
| Heating Element Type | COMBUSTION CHAMBER |
| Operating Control Type | HAND SWITCH |
| 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 |
|---|---|
| 600 PRIMARY | Hall Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| MIL-H-11511 | 4/1 Identification reference U.S. Government activity |
NSN 4520-00-778-7136 is a Heater,space, manufactured by Hall Industries Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-00-778-7136 has 1 manufacturer part number on file: 600 (Hall Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 4520-00-999-8523. Verify interchangeability with system specifications before substitution.
Key specifications for 600: Speed Adjustments: SINGLE SPEED; Heat Delivery Rate: 60000.0 BRITISH THERMAL UNIT; Phase: SINGLE; Frequency in Hertz: 50.0 OR 60.0. 23 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.