# NSN 5945-00-557-4221: Relay, Electromagnetic

NSN 5945-00-557-4221 (also written 5945005574221; NIIN 00-557-4221) is a relay, electromagnetic in Federal Supply Class 5945, Relays and Solenoids. 3 manufacturer part numbers from 3 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 5945-00-557-4221 (5945005574221)
- NIIN: 00-557-4221 (005574221)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABKR | CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | SINGLE MOUNTING FACILITY INCHES NOMINAL 2.610 |
| APNP | DUTY TYPE | CONTINUOUS |
| AXHR | MOUNTING FACILITY TYPE AND QUANTITY | SINGLE MOUNTING FACILITY UNTHREADED HOLE(S) 4 |
| CQYJ | MOUNTING FACILITY PATTERN | SINGLE MOUNTING FACILITY RECTANGULAR |
| APNA | WINDING DC RESISTANCE RATING | SINGLE WINDING OHMS NOMINAL 55.0 |
| CTDL | MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE | RESISTIVE LOAD AMPERES DC 3.0 |
| CWAB | MAIN CONTACT MAXIMUM VOLTAGE RATING IN VOLTS | DC 30.0 |
| TTQY | TERMINAL TYPE AND QUANTITY | ALL FUNCTIONS PIN 5 |
| CSXF | OPERATING VOLTAGE RATING AND TYPE AT SPECIFIED TEMP | SINGLE WINDING VOLTS DC 25 DEG CELSIUS 30.0 |
| CRNG | NONPILE-UP MAIN CONTACT ARRANGEMENT | POLE, DOUBLE THROW, ONE POSITION MOMENTARY 1 |
| CRPQ | NOMINAL OPERATING CURRENT RATING AND TYPE | SINGLE WINDING MILLIAMPERES DC 700.0 |
| CRXH | TIME DELAY | FIXED OPERATE AND RELEASE TIME SECONDS NOMINAL 3.00 |
| AEBV | UNTHREADED MOUNTING HOLE DIAMETER | SINGLE MOUNTING FACILITY INCHES NOMINAL 0.228 |
| ABKQ | CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH | SINGLE MOUNTING FACILITY INCHES NOMINAL 3.410 |
| ABMK | OVERALL WIDTH | INCHES NOMINAL 2.750 |
| ABKW | OVERALL HEIGHT | INCHES NOMINAL 2.750 |
| APCN | COIL QUANTITY | 1 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 2.500 |
| AKDX | WINDING QUANTITY | 1 |
| ADZC | ENVIRONMENTAL PROTECTION | HERMETIC |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 7810250 | 97151 | AIR FORCE LIFECYCLE MANAGEMENT CENTER ELECTRONIC COMPONENTS (AFLCMC/EZSS) | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AE129-002-99 | 55901 | DARE ELECTRONICS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| D0TM070-1 | 15420 | LOGITEK 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=5945005574221&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=5945005574221
- 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/5945-00-557-4221/
JSON: https://nsnexplorer.com/api/nsn/5945-00-557-4221.json