The Heater,space,electric, cataloged under National Stock Number 4520-01-203-2296, 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 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-203-2296 |
| Primary Part Number | MUH-10-4 |
| Item Name | Heater,space,electric |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| Status | ACTIVE |
| Heat Delivery Rate | 10.0 KILOGRAM-CALORIE KG |
| Phase | THREE |
| Current Type | AC |
| Voltage in Volts | 480.0 |
| Height | 21.750 INCHES NOMINAL IN |
| Depth | 7.500 INCHES NOMINAL IN |
| Width | 19.000 INCHES NOMINAL IN |
| Heating Element Type | ELECTRIC NONIMMERSION |
| 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 |
|---|---|
| MUH-10-4 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| MUH-10-4 | Spx Corporation Dba Berko Electric Div Marley Engineered Products (USA) |
| 25D240 | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| Reference | Meaning |
|---|---|
| MUH-10-4 | 5/9 Secondary reference Marley Engineered Products Llc |
| MUH-10-4 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2E588 | 5/9 Secondary reference W.w. Grainger, Inc. Div Government Sales Division |
| MUH-10-4 | C/1 Advisory reference — outside the item-of-supply concept Chromalox Inc |
NSN 4520-01-203-2296 is a Heater,space,electric, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-203-2296 has 3 manufacturer part numbers on file: MUH-10-4 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), MUH-10-4 (Spx Corporation Dba Berko Electric Div Marley Engineered Products), 25D240 (W.w. Grainger, Inc. Div Government Sales Division).
Key specifications for MUH-10-4: Heat Delivery Rate: 10.0 KILOGRAM-CALORIE KG; Phase: THREE; Current Type: AC; Voltage in Volts: 480.0. 8 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.