# NSN 4520-01-628-5204: Heater, Ventilation, Duct Type

NSN 4520-01-628-5204 (also written 4520016285204; NIIN 01-628-5204) is a heater, ventilation, duct type in Federal Supply Class 4520, Space and Water Heating Equipment. 2 manufacturer part numbers from 1 supplier are on record. No purchases are on record yet.

## Identification

- NSN: 4520-01-628-5204 (4520016285204)
- NIIN: 01-628-5204 (016285204)
- Item name: HEATER,VENTILATION,DUCT TYPE
- Federal Supply Class: [FSC 4520 Space and Water Heating Equipment](https://nsnexplorer.com/fsc/4520/)
- Federal Supply Group: [FSG 45](https://nsnexplorer.com/group/45/)
- Acquisition method suffix code: AMSC D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAXX | MOUNTING TYPE | VENTILATION DUCT |
| ABAM | HEAT MEDIUM TYPE | AIR |
| BDXJ | HEATING ELEMENT TYPE | ELECTRIC NONIMMERSION |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | FINNED TUBULAR HVAC DUCT TYPE HEATER WITH STAINLESS STEEL 304 HEATER FRAME AND TERMINAL BOX |
| FEAT | SPECIAL FEATURES | TUBULAR ELEMENTS WITH FINS, FLANGE MOUNTED TO DUCTWORK, 440 VOLTS, 3 PHASE, 24 VOLTS CONTROL CIRCUIT VOLTAGE |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 210-237055 | 74924 | INDEECO LLC DBA INDEECO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| L210N1:E27139 REV D SHT 2 TABLE | 74924 | INDEECO LLC DBA INDEECO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4520016285204&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4520016285204
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/4520-01-628-5204/
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