The Circuit Breaker, cataloged under National Stock Number 5925-01-173-1763, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Leonardo Spa Helicopters Division - Production Site. Government technical data includes 30 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-173-1763 |
| Primary Part Number | 3TC14-35 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Leonardo Spa Helicopters Division - Production Site |
| Status | ACTIVE |
| Bushing Length | 0.250 INCHES NOMINAL IN |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP SINGLE LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 120.0 AC AND 28.0 DC SINGLE LOCATION |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING |
| Actuator Position Designation | AT POLE ONE |
| Frequency in Hertz | 400.0 SINGLE LOCATION |
| Body Style | SINGLE POLE TYPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 138.0 SINGLE LOCATION |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Body Width | 0.781 INCHES MAXIMUM IN |
| Pole Quantity | 1 |
| Mounting Surface to Terminal End Distance | 1.218 INCHES NOMINAL IN |
| Thread Pitch Diameters | +0.444 TO 0.447 INCHES IN |
| Maximum Continuous Load Current Rating Per Pole | 35.0 AMPERES AC AND 35.0 AMPERES DC SINGLE LOCATION |
| Trip Release Characteristic | TIME DELAY SINGLE LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 2000.0 AC AND 6000.0 DC SINGLE LOCATION |
| Nominal Thread Size | 0.469 INCHES IN |
| Body Length | 1.100 INCHES MAXIMUM IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 4.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT SINGLE LOCATION |
| Manual Actuator Type and Quantity | 1 PUSH BUTTON |
| Inclosure Protection Type for Which Designed | VIBRATION RESISTANT AND SHOCK RESISTANT AND DUSTTIGHT AND CORROSION RESISTANT AND HUMIDITY RESISTANT AND EXPLOSION PROOF |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC CASE |
| Actuator Function | TRIP-RESET |
| Trip Release Ambient Temp Rating | -55.0 CELSIUS MINIMUM AND 121.0 CELSIUS MAXIMUM SINGLE LOCATION DEGC |
| Terminal Type and Quantity | 2 TAB W/SCREW |
| Main Contact Tripping Mechanism Type | TRIP FREE |
| Thread Series Designator | UNS |
| Trip Release Method | THERMAL SINGLE LOCATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3TC14-35 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| 3TC14-35 | Omnitech - Eichut Ltd (ISR) |
| Reference | Meaning |
|---|---|
| 214-0044-050 | 7/2 Vendor item drawing reference U.S. Government activity |
| 3TC14-35 | 3/2 Design control — primary reference U.S. Government activity |
| 5925PL0694564 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5925-01-173-1763 is a Circuit Breaker, manufactured by Leonardo Spa Helicopters Division - Production Site, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-173-1763 has 2 manufacturer part numbers on file: 3TC14-35 (Leonardo Spa Helicopters Division - Production Site), 3TC14-35 (Omnitech - Eichut Ltd).
Key specifications for 3TC14-35: Bushing Length: 0.250 INCHES NOMINAL IN; Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION; Operating Voltage Type and Rating Per Pole in Volts: 120.0 AC AND 28.0 DC SINGLE LOCATION. 30 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.