The Heater,immersion,liquid Fuel Fir, cataloged under National Stock Number 4520-01-343-0569, 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. Government technical data includes 1 specification, 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 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 | 4520-01-343-0569 |
| Primary Part Number | 054-113560-003 |
| Item Name | Heater,immersion,liquid Fuel Fir |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Chromalox Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 440V AC RATED V |
| 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 |
|---|---|
| 054-113560-003 PRIMARY | Chromalox Inc (USA) |
NSN 4520-01-343-0569 is a Heater,immersion,liquid Fuel Fir, manufactured by Chromalox Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-343-0569 has 1 manufacturer part number on file: 054-113560-003 (Chromalox Inc).
1 possible match (shared part number, not a government interchangeability claim): 5940-01-734-0372. Verify interchangeability with system specifications before substitution.
Key specifications for 054-113560-003: General Characteristics Item Description: 440V AC RATED V. 1 specification is 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.