The Heater,space,electric, cataloged under National Stock Number 4520-01-416-0446, 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 Hoffman Enclosures Inc Dba Hoffman Enclosures Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Heater,space,electric |
| FSC / FSG | 4520 — Space and Water Heating Equipment (FSG 45) |
| Manufacturers | Hoffman Enclosures Inc Dba Hoffman Enclosures Inc (CAGE 1WSN4) |
| Parameter | Value |
|---|---|
| NSN | 4520-01-416-0446 |
| Primary Part Number | DAH4001B |
| Item Name | Heater,space,electric |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Hoffman Enclosures Inc Dba Hoffman Enclosures Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| DAH4001B PRIMARY | Hoffman Enclosures Inc Dba Hoffman Enclosures Inc (USA) |
| Reference | Meaning |
|---|---|
| E332-5081-28 | 5/2 Secondary reference U.S. Government activity |
| DAH4001B | 3/9 Design control — primary reference Hoffman Engineering Co Div of Federal Cartridge Corp |
| E332-5081 | D/9 Drawing number reference only U.S. Government activity |
NSN 4520-01-416-0446 is a Heater,space,electric, manufactured by Hoffman Enclosures Inc Dba Hoffman Enclosures Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-416-0446 has 1 manufacturer part number on file: DAH4001B (Hoffman Enclosures Inc Dba Hoffman Enclosures Inc).
1 possible match (shared part number, not a government interchangeability claim): 6110-01-416-5602. Verify interchangeability with system specifications before substitution.
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.