The Circuit Breaker, cataloged under National Stock Number 5925-01-356-8559, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Oceanic Electrical Mfg. Co., Inc. Dba Oceanic Electrical Manufacturing Co Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-356-8559 |
| Primary Part Number | 12589C-0001 ITEM 033 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Oceanic Electrical Mfg. Co., Inc. Dba Oceanic Electrical Manufacturing Co Inc |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 600.0 AC AND 250.0 DC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Actuator Position Designation | AT POLE TWO |
| Frequency in Hertz | 60.0 ALL LOCATIONS |
| Unpackaged Unit Weight | 4.500 POUNDS NOMINAL LBS |
| Center to Center Distance Between Terminals Parallel to Width | 1.375 INCHES NOMINAL IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | MULTIPOLE-SINGLE ACTUATOR TYPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 125.0 ALL LOCATIONS |
| Adjustable Trip Setting Current Range Per Pole in Amps | +1125.0 TO 2250.0 AC ALL LOCATIONS |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 7.250 INCHES NOMINAL IN |
| Arc Quenching Method | MAGNETIC BLOWOUT |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 4.125 INCHES NOMINAL IN |
| Body Height | 4.062 INCHES NOMINAL IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Unthreaded Mounting Hole Diameter | 0.250 INCHES NOMINAL IN |
| Pole Quantity | 3 |
| Maximum Continuous Load Current Rating Per Pole | 250.0 AMPERES AC AND 250.0 AMPERES DC ALL LOCATIONS |
| Features Provided | ADJUSTABLE TRIP RELEASE |
| Trip Release Characteristic | INSTANTANEOUS ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 25000.0 AC AND 22000.0 DC ALL LOCATIONS |
| Body Length | 10.000 INCHES NOMINAL IN |
| Manual Actuator Type and Quantity | 1 TOGGLE |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 1.375 INCHES NOMINAL IN |
| Material | PLASTIC CASE |
| Actuator Function | TRIP-RESET |
| Terminal Type and Quantity | 6 COMPRESSION |
| 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 |
|---|---|
| 12589C-0001 ITEM 033 | Oceanic Electrical Mfg. Co., Inc. Dba Oceanic Electrical Manufacturing Co Inc (USA) |
| Reference | Meaning |
|---|---|
| HMCP250L5VW | 5/9 Secondary reference U.S. Government activity |
| HMCP250L5W | 3/2 Design control — primary reference U.S. Government activity |
NSN 5925-01-356-8559 is a Circuit Breaker, manufactured by Oceanic Electrical Mfg. Co., Inc. Dba Oceanic Electrical Manufacturing Co Inc, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-356-8559 has 1 manufacturer part number on file: 12589C-0001 ITEM 033 (Oceanic Electrical Mfg. Co., Inc. Dba Oceanic Electrical Manufacturing Co Inc).
Key specifications for 12589C-0001 ITEM 033: Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 600.0 AC AND 250.0 DC ALL LOCATIONS; Mounting Facility Type and Quantity: 4 UNTHREADED 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.