# NSN 4520-01-299-3607: Heating Element, Electrical, Nonim

NSN 4520-01-299-3607 (also written 4520012993607; NIIN 01-299-3607) is a heating element, electrical, nonim in Federal Supply Class 4520, Space and Water Heating Equipment. 8 manufacturer part numbers from 5 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4520-01-299-3607 (4520012993607)
- NIIN: 01-299-3607 (012993607)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AALX | MOUNTING METHOD STYLE | — |
| AAQL | BODY STYLE | — |
| AARA | TERMINAL QUANTITY | 4 |
| AAUB | HOLE DIAMETER | INCHES NOMINAL 0.086 |
| ABGL | WIDTH | INCHES NOMINAL 0.570 |
| ABJA | ELEMENT RADIATION SPECTRUM | NONINFRARED |
| ABJM | HEAT CONTROL TYPE | HEAT SWITCH |
| ABJS | ELEMENT CONNECTION STYLE | — |
| ABKF | TERMINAL BOX ENVIRONMENTAL PROTECTION | MOISTURE RESISTANT |
| ABKT | HOLE OR SLOT QUANTITY | 2 |
| ABNR | HEAT QUANTITY | 1 |
| ABRY | LENGTH | INCHES NOMINAL 0.880 |
| AGAV | END ITEM IDENTIFICATION | AN/ALQ-135 COUNTERMEASURES SYSTEM, F-15 EAGLE AIRCRAFT |
| BHHK | ELEMENT QUANTITY | 1 |
| CQJX | NOMINAL THREAD SIZE | MOUNTING FACILITY INCHES 0.086 |
| CQRN | THREAD QUANTITY | MOUNTING FACILITY PER INCH 56 |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| CSBH | VOLTAGE IN VOLTS AND CURRENT TYPE | FIRST VOLTAGE DC 26.0 |
| FEAT | SPECIAL FEATURES | WEAPON SYSTEM ESSENTIAL |
| THSD | THREAD SERIES DESIGNATOR | MOUNTING FACILITY UNIFIED NATIONAL COARSE (UNC) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 037-003345-001 | 14482 | WATKINS-JOHNSON CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 037-003345-001 | 1BWN1 | CAES SYSTEMS LLC DIV MISSILE SYSTEMS DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 037-003345-001 | 26916 | NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP DIV MULTIPLE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 2582D22 | 16111 | RODALE ELECTRONICS INC. DBA RODALE WIRELESS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 331240-001 | 05783 | WATKINS-JOHNSON CO STEWART DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 331240-001 | 14482 | WATKINS-JOHNSON CO | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 331240-001 | 1BWN1 | CAES SYSTEMS LLC DIV MISSILE SYSTEMS DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| WJ-331240-001 | 1BWN1 | CAES SYSTEMS LLC DIV MISSILE SYSTEMS DIVISION | [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=4520012993607&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4520012993607
- 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/4520-01-299-3607/
JSON: https://nsnexplorer.com/api/nsn/4520-01-299-3607.json