The Heater,ventilation,duct Type, cataloged under National Stock Number 4520-01-618-8593, 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. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-618-8593 |
| Primary Part Number | TFZ-27L-EBHR |
| Item Name | Heater,ventilation,duct Type |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Indeeco Llc Dba Indeeco |
| 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 |
|---|---|
| TFZ-27L-EBHR PRIMARY | Indeeco Llc Dba Indeeco (USA) |
| 512-6985474-F58 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 211031791C | 5/2 Secondary reference U.S. Government activity |
| H643-3215-F58 | 5/2 Secondary reference U.S. Government activity |
NSN 4520-01-618-8593 is a Heater,ventilation,duct Type, manufactured by Indeeco Llc Dba Indeeco, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-618-8593 has 2 manufacturer part numbers on file: TFZ-27L-EBHR (Indeeco Llc Dba Indeeco), 512-6985474-F58 (Naval Sea Systems Command).
Key specifications for TFZ-27L-EBHR: Part Name Assigned by Controlling Agency: HEATER, ELECTRIC; End Item Identification: DUCT HEATER. 0 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.