The Circuit Breaker, cataloged under National Stock Number 5925-01-174-7494, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Reliance Comm/tec Corp Lorain Products Div. Government technical data includes 30 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 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 | 5925-01-174-7494 |
| Primary Part Number | 2566-066 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Reliance Comm/tec Corp Lorain Products Div |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP SINGLE LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 65.0 DC SINGLE LOCATION |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Actuator Position Designation | AT POLE ONE |
| Switch Terminal Type | TAB, SOLDER LUG |
| Unpackaged Unit Weight | 2.500 OUNCES NOMINAL OZ |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | SINGLE POLE TYPE |
| Switch Voltage Rating and Type in Volts | 250.0 AC AND 30.0 DC |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 125.0 SINGLE LOCATION |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 1.660 INCHES NOMINAL IN |
| Arc Quenching Method | MAGNETIC BLOWOUT |
| Switch Location and Position Designation | INTERNAL AT POLE ONE |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Body Width | 0.750 INCHES NOMINAL IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 1 |
| Mounting Surface to Terminal End Distance | 1.875 INCHES MAXIMUM IN |
| Maximum Continuous Load Current Rating Per Pole | 9.0 AMPERES DC SINGLE LOCATION |
| Trip Release Characteristic | TIME DELAY SINGLE LOCATION |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 1000.0 DC SINGLE LOCATION |
| Nominal Thread Size | 0.138 INCHES IN |
| Body Length | 2.000 INCHES NOMINAL IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 0.700 MINIMUM AT 200 PCT AND 9.000 MAXIMUM AT 200 PCT SINGLE LOCATION |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Switch Current Rating and Type in Amps | 10.0 AC AND 4.0 DC |
| Inclosure Protection Type for Which Designed | FUNGUS RESISTANT AND MOISTURE RESISTANT |
| Switch Contact Arrangement | SINGLE POLE, DOUBLE THROW |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| 2566-066 PRIMARY | Reliance Comm/tec Corp Lorain Products Div (USA) |
NSN 5925-01-174-7494 is a Circuit Breaker, manufactured by Reliance Comm/tec Corp Lorain Products Div, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-174-7494 has 1 manufacturer part number on file: 2566-066 (Reliance Comm/tec Corp Lorain Products Div).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-344-7969. Verify interchangeability with system specifications before substitution.
Key specifications for 2566-066: Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION; Operating Voltage Type and Rating Per Pole in Volts: 65.0 DC SINGLE LOCATION; Mounting Facility Type and Quantity: 2 THREADED HOLE(S). 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.