# NSN 4520-01-297-0121: Heating Element, Electrical, Nonim

NSN 4520-01-297-0121 (also written 4520012970121; NIIN 01-297-0121) is a heating element, electrical, nonim in Federal Supply Class 4520, Space and Water Heating Equipment. 4 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4520-01-297-0121 (4520012970121)
- NIIN: 01-297-0121 (012970121)
- Item name: HEATING ELEMENT,ELECTRICAL,NONIM
- 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 Z: a commercial, nondevelopmental or off-the-shelf item. (observed 2026-10-27)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AARA | TERMINAL QUANTITY | 2 |
| ABHS | EFFECTIVE HEATING LENGTH | INCHES NOMINAL 29.000 |
| ABJS | ELEMENT CONNECTION STYLE | — |
| ABJT | TERMINAL LENGTH | INCHES NOMINAL 3.000 |
| ABNR | HEAT QUANTITY | 3 |
| BHHK | ELEMENT QUANTITY | 3 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 5599848 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5599848-19 | 38597 | LOCKHEED MARTIN CORPORATION DIV ROTARY AND MISSION SYSTEMS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 5599848-19 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| ASSY5599848-19 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-01 | [SPE4A123G0021/SPE4A126F0137](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4520012970121) | HEATING ELEMENT, ELE | DERCO AEROSPACE, INC. DBA DERCO AEROSPACE, INC. A LOCKHEED MARTIN COMPANY | $50,416.90 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4520012970121&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4520012970121
- 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/4520-01-297-0121/
JSON: https://nsnexplorer.com/api/nsn/4520-01-297-0121.json