# NSN 4520-01-524-4261: Heating Element, Electrical, Immer

NSN 4520-01-524-4261 (also written 4520015244261; NIIN 01-524-4261) is a heating element, electrical, immer in Federal Supply Class 4520, Space and Water Heating Equipment. 3 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4520-01-524-4261 (4520015244261)
- NIIN: 01-524-4261 (015244261)
- Item name: HEATING ELEMENT,ELECTRICAL,IMMER
- 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 H: the government lacks sufficient, accurate or legible data to buy from other sources. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CSBH | VOLTAGE IN VOLTS AND CURRENT TYPE | SINGLE VOLTAGE AC 480.0 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | HEATER, TANK |
| FAAZ | PHASE | SINGLE VOLTAGE THREE |
| FEAT | SPECIAL FEATURES | 5 INCH STEEL FLANGE, MOISTURE RESISTANT TERMINAL HOUSING, 33.063 IN TANK DIMENSION |
| ZZZV | FSC APPLICATION DATA | SG811-CF-MMC-010 ELECTRICAL SYSTEM PARTS LIST, BELOW SLEW |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 155-500726-661 | 65586 | CHROMALOX INC DBA CHROMALOX PRECISION HEAT AND CONTROL, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 247035 | 60848 | ALLIED SYSTEMS COMPANY DBA ALLIED SYSTEMS CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 500726-661 | 65586 | CHROMALOX INC DBA CHROMALOX PRECISION HEAT AND CONTROL, INC | [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=4520015244261&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4520015244261
- 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/4520-01-524-4261/
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