# NSN 4520-01-260-3257: Heater, Duct Type, Stationary

NSN 4520-01-260-3257 (also written 4520012603257; NIIN 01-260-3257) is a heater, duct type, stationary in Federal Supply Class 4520, Space and Water Heating Equipment. 5 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4520-01-260-3257 (4520012603257)
- NIIN: 01-260-3257 (012603257)
- Item name: HEATER,DUCT TYPE,STATIONARY
- 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 G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAXX | MOUNTING TYPE | VENTILATION DUCT |
| ABAM | HEAT MEDIUM TYPE | AIR |
| ABGL | WIDTH | INCHES NOMINAL 52.000 |
| ACDC | CURRENT TYPE | AC |
| AEJZ | DEPTH | INCHES NOMINAL 8.000 |
| AMPS | CURRENT RATING IN AMPS | 3.6 |
| BDXJ | HEATING ELEMENT TYPE | ELECTRIC NONIMMERSION |
| CQXD | HEAT DELIVERY RATE | BRITISH THERMAL UNIT 343248.0 |
| ELEC | VOLTAGE IN VOLTS | 440.0 |
| FAAZ | PHASE | THREE |
| FREQ | FREQUENCY IN HERTZ | 60.0 |
| HGTH | HEIGHT | INCHES NOMINAL 39.125 |
| ZZZK | SPECIFICATION/STANDARD DATA | GOVERNMENT SPECIFICATION 81349--IL-H-22594 |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | TYPE - AND SIZE 37EH |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 106-056816-000 | 65586 | CHROMALOX INC DBA CHROMALOX PRECISION HEAT AND CONTROL, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 106-056816-053 | 64486 | TURBINE ENGINE COMPONENTS TECHNOLOGIES CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| EH37-M | 17032 | VALAD ELECTRIC HEATING CORP. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MIL-H-22594 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| TFZ-37M | 74924 | INDEECO LLC DBA INDEECO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-24 | [SPE8E926P1525](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4520012603257) | HEATER, DUCT TYPE, ST | INTEGRATED PROCUREMENT TECHNOLOGIES | $11,000.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4520012603257&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4520012603257
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- 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/4520-01-260-3257/
JSON: https://nsnexplorer.com/api/nsn/4520-01-260-3257.json