# NSN 5945-00-253-3991: Relay, Electromagnetic

NSN 5945-00-253-3991 (also written 5945002533991; NIIN 00-253-3991) is a relay, electromagnetic in Federal Supply Class 5945, Relays and Solenoids. 4 manufacturer part numbers from 4 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 5945-00-253-3991 (5945002533991)
- NIIN: 00-253-3991 (002533991)
- Item name: RELAY,ELECTROMAGNETIC
- Federal Supply Class: [FSC 5945 Relays and Solenoids](https://nsnexplorer.com/fsc/5945/)
- Federal Supply Group: [FSG 59](https://nsnexplorer.com/group/59/)
- Acquisition method suffix code: AMSC B: must be bought from the sources named on a source control or selected item drawing. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CWAB | MAIN CONTACT MAXIMUM VOLTAGE RATING IN VOLTS | DC 28.0 |
| APNP | DUTY TYPE | CONTINUOUS |
| ABMK | OVERALL WIDTH | INCHES NOMINAL 2.110 |
| APCN | COIL QUANTITY | 1 |
| CSXF | OPERATING VOLTAGE RATING AND TYPE AT SPECIFIED TEMP | SINGLE WINDING VOLTS DC 25 DEG CELSIUS 30.0 |
| CTDL | MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE | INDUCTIVE LOAD AMPERES DC 100.0 |
| AKDX | WINDING QUANTITY | 1 |
| ABKW | OVERALL HEIGHT | INCHES MAXIMUM 2.450 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 3.000 |
| CRPQ | NOMINAL OPERATING CURRENT RATING AND TYPE | SINGLE WINDING MILLIAMPERES DC 175.0 |
| CSQC | AUXILIARY CONTACT MAXIMUM VOLTAGE RATING IN VOLTS | DC 28.0 |
| APNA | WINDING DC RESISTANCE RATING | SINGLE WINDING OHMS NOMINAL 171.0 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| A51A9123-1 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A51A9123-1 | 61174 | NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A51A9123-1 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| N417 | 74063 | TE CONNECTIVITY CORPORATION | [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=5945002533991&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5945002533991
- 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/5945-00-253-3991/
JSON: https://nsnexplorer.com/api/nsn/5945-00-253-3991.json