The Relay,electromagnetic, cataloged under National Stock Number 5945-00-043-5173, is classified within Federal Supply Class 5945 (Relays and Solenoids) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5945-00-043-5173 |
| Primary Part Number | 10127740 |
| Item Name | Relay,electromagnetic |
| FSC / FSG | 5945 / 59 — Relays and Solenoids |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY |
| Main Contact Maximum Voltage Rating in Volts | 28.0 DC |
| Fragility Factor | MODERATELY RUGGED |
| Mounting Facility Pattern | IN-LINE SINGLE MOUNTING FACILITY |
| Arc Quenching Method | AIR |
| Center to Center Distance Between Mounting Facilities Parallel to Length | 1.557 INCHES MINIMUM AND 1.567 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN |
| Precious Material | SILVER AND GOLD |
| Main Contact Load Current Rating at Maximum Rated Voltage | 2.0 AMPERES DC INDUCTIVE LOAD |
| Duty Type | CONTINUOUS |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Unthreaded Mounting Hole Diameter | 0.152 INCHES NOMINAL SINGLE MOUNTING FACILITY IN |
| Winding DC Resistance Rating | 200.0 OHMS NOMINAL SINGLE WINDING |
| Time Delay | 0.015 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME |
| Coil Quantity | 1 |
| Surface Treatment | GOLD CONTACT |
| Environmental Protection | HERMETIC |
| Precious Material and Location | CONTACTS SILVER AND CONACT SURFACES GOLD |
| Cubic Measure | 4.814 CUBIC INCHES |
| Winding Quantity | 1 |
| Operating Voltage Rating and Type at Specified Temp | 26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING |
| Material | SILVER CONTACT |
| Terminal Type and Quantity | 20 PIN ALL FUNCTIONS |
| Nonpile-Up Main Contact Arrangement | 6 POLE, DOUBLE THROW, ONE POSITION MOMENTARY |
| Purpose for Which Designed | GENERAL |
| 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 |
|---|---|
| 10127740 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| FC6-407 | 5/9 Secondary reference Struthers-Dunn Inc |
NSN 5945-00-043-5173 is a Relay,electromagnetic, manufactured by Us Army Aviation and Missile Command, classified under FSC 5945, Relays and Solenoids. Status: active.
NSN 5945-00-043-5173 has 1 manufacturer part number on file: 10127740 (Us Army Aviation and Missile Command).
1 possible match (shared part number, not a government interchangeability claim): 5905-01-225-3390. Verify interchangeability with system specifications before substitution.
Key specifications for 10127740: Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Height: 1.940 INCHES MAXIMUM IN; Main Contact Maximum Voltage Rating in Volts: 28.0 DC; Fragility Factor: MODERATELY RUGGED. 24 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.