# NSN 4520-01-597-1001: Heater, Ventilation, Duct Type

NSN 4520-01-597-1001 (also written 4520015971001; NIIN 01-597-1001) 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: 4520-01-597-1001 (4520015971001)
- NIIN: 01-597-1001 (015971001)
- 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 |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | BRITISH THERMAL 3 PHASE AC UNIT |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | HEATER, ELECTRICAL DUCT |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 210-212055 | 74924 | INDEECO LLC DBA INDEECO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| L210N1:B25432 REV H HEATER NO.1 | 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=4520015971001&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4520015971001
- 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/4520-01-597-1001/
JSON: https://nsnexplorer.com/api/nsn/4520-01-597-1001.json