The Circuit Breaker, cataloged under National Stock Number 5925-01-558-3578, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Circuit Breakers Inc. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5925-01-558-3578 |
| Primary Part Number | IULHK111-1-61-60.0-01 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Circuit Breakers Inc |
| Status | ACTIVE |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 250.0 AC ALL LOCATIONS |
| Frequency in Hertz | 50.0 OR 60.0 ALL LOCATIONS |
| Body Style | MULTIPOLE-MULTIPLE ACTUATOR TYPE |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 2.060 INCHES NOMINAL IN |
| Body Width | 2.265 INCHES MAXIMUM IN |
| Pole Quantity | 3 |
| Mounting Surface to Terminal End Distance | 2.546 INCHES NOMINAL IN |
| Maximum Continuous Load Current Rating Per Pole | 60.0 AMPERES AC ALL LOCATIONS |
| Trip Release Characteristic | TIME DELAY ALL LOCATIONS |
| Body Length | 2.490 INCHES NOMINAL IN |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 0.750 INCHES NOMINAL IN |
| Boss Height | 0.140 INCHES NOMINAL IN |
| Trip Release Method | MAGNETIC ALL LOCATIONS |
| Center to Center Distance Between Terminals Parallel to Length | 1.940 INCHES NOMINAL IN |
| 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 |
|---|---|
| IULHK111-1-61-60.0-01 | Circuit Breakers Inc (USA) |
| Reference | Meaning |
|---|---|
| IULHK111-1-61-60-.0-01 | 5/9 Secondary reference Circuit Breakers Inc |
| IULHK111-1-61-60.0-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5925-01-558-3578 is a Circuit Breaker, manufactured by Circuit Breakers Inc, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-558-3578 has 1 manufacturer part number on file: IULHK111-1-61-60.0-01 (Circuit Breakers Inc).
Key specifications for IULHK111-1-61-60.0-01: Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 250.0 AC ALL LOCATIONS; Frequency in Hertz: 50.0 OR 60.0 ALL LOCATIONS. 16 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.