The Relay,electromagnetic, cataloged under National Stock Number 5945-01-165-9917, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Teledyne Defense Electronics, Llc Dba Teledyne Relays Div Https://www.teledyne.com/what-We-Do/. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-01-165-9917 |
| Primary Part Number | 421D-3223 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Teledyne Defense Electronics, Llc Dba Teledyne Relays Div Https://www.teledyne.com/what-We-Do/ |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 TERMINAL SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 115.0 AC AND 28.0 DC |
| Overall Diameter | 0.370 INCHES NOMINAL IN |
| Precious Material | PLATINUM AND GOLD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 400.0 MILLIAMPERES AC AND 500.0 MILLIAMPERES DC RESISTIVE LOAD |
| Duty Type | CONTINUOUS |
| Features Provided | COIL VOLTAGE SUPPRESSION AND LATCHING CONTACTS AND POLARIZED |
| Time Delay | 0.001 SECONDS MAXIMUM FIXED OPERATE TIME |
| Coil Quantity | 2 |
| Surface Treatment | GOLD CONTACT |
| Environmental Protection | HERMETIC |
| Precious Material and Location | CONTACTS PLATINUM AND CONTACT SURFACES GOLD |
| Winding Quantity | 2 |
| Operating Voltage Rating and Type at Specified Temp | 32.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Material | PLATINUM CONTACT |
| Terminal Type and Quantity | 7 WIRE LEAD ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2139577G001 | L3harris Technologies, Inc. (USA) |
| 421D-3223 PRIMARY | Teledyne Defense Electronics, Llc Dba Teledyne Relays Div Https://www.teledyne.com/what-We-Do/ (USA) |
NSN 5945-01-165-9917 is a Relay,electromagnetic, manufactured by Teledyne Defense Electronics, Llc Dba Teledyne Relays Div Https://www.teledyne.com/what-We-Do/, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-01-165-9917 has 2 manufacturer part numbers on file: 2139577G001 (L3harris Technologies, Inc.), 421D-3223 (Teledyne Defense Electronics, Llc Dba Teledyne Relays Div Https://www.teledyne.com/what-We-Do/).
Key specifications for 421D-3223: Mounting Facility Type and Quantity: 1 TERMINAL SINGLE MOUNTING FACILITY; Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 28.0 DC; Overall Diameter: 0.370 INCHES NOMINAL IN; Precious Material: PLATINUM AND GOLD. 17 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.