The Heater,immersion,liquid Fuel Fir, cataloged under National Stock Number 4520-01-312-4139, 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 Indeeco Llc Dba Indeeco. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-312-4139 |
| Primary Part Number | 726XQ193705 |
| Item Name | Heater,immersion,liquid Fuel Fir |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Indeeco Llc Dba Indeeco |
| Status | ACTIVE |
| Inclosure Material | STEEL CORROSION RESISTING |
| General Characteristics Item Description | 440 VAC RATED VAC |
| Special Test Features | HEATER IS A 12" 150 STEEL FLANGE, STAINLESS STEEL ELEMENTS |
| 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 |
|---|---|
| 726XQ193705 PRIMARY | Indeeco Llc Dba Indeeco (USA) |
| Reference | Meaning |
|---|---|
| 726XQ0522 | 3/9 Design control — primary reference Indeeco Llc Dba Indeeco |
NSN 4520-01-312-4139 is a Heater,immersion,liquid Fuel Fir, manufactured by Indeeco Llc Dba Indeeco, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-312-4139 has 1 manufacturer part number on file: 726XQ193705 (Indeeco Llc Dba Indeeco).
Key specifications for 726XQ193705: Inclosure Material: STEEL CORROSION RESISTING; General Characteristics Item Description: 440 VAC RATED VAC; Special Test Features: HEATER IS A 12" 150 STEEL FLANGE, STAINLESS STEEL ELEMENTS; End Item Identification: LUBE OIL PURIFIER. 3 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.