The Circuit Breaker, cataloged under National Stock Number 5925-01-666-3315, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is E T a Circuit Breakers Dba E T a Products Co of America. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-666-3315 |
| Primary Part Number | 4120-G111-K1M1-A1S0ZN-20A |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | E T a Circuit Breakers Dba E T a Products Co of America |
| Status | ACTIVE |
| Bushing Length | 0.512 INCHES NOMINAL IN |
| Reset Method | MANUAL |
| Operating Voltage Type and Rating Per Pole in Volts | 115.0 AC SINGLE LOCATION |
| Body Style | SINGLE POLE TYPE |
| Switch Voltage Rating and Type in Volts | 115.0 AC |
| Body Width | 0.555 INCHES NOMINAL IN |
| Pole Quantity | 1 |
| Mounting Surface to Terminal End Distance | 1.22 INCHES NOMINAL IN |
| Nominal Thread Size | 4.0 MILLIMETERS MM |
| Body Length | 0.766 INCHES NOMINAL IN |
| Manual Actuator Type and Quantity | 1 PUSH-PULL |
| Switch Current Rating and Type in Amps | 20.0 AC |
| Terminal Type and Quantity | 2 SCREW |
| Thread Series Designator | M |
| Trip Release Method | THERMAL SINGLE LOCATION |
| Center to Center Distance Between Terminals Parallel to Length | 0.504 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 |
|---|---|
| 4120-G111-K1M1-A1S0ZN-20A PRIMARY | E T a Circuit Breakers Dba E T a Products Co of America (USA) |
| Reference | Meaning |
|---|---|
| 3891442 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5925-01-666-3315 is a Circuit Breaker, manufactured by E T a Circuit Breakers Dba E T a Products Co of America, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-666-3315 has 1 manufacturer part number on file: 4120-G111-K1M1-A1S0ZN-20A (E T a Circuit Breakers Dba E T a Products Co of America).
Key specifications for 4120-G111-K1M1-A1S0ZN-20A: Bushing Length: 0.512 INCHES NOMINAL IN; Reset Method: MANUAL; Operating Voltage Type and Rating Per Pole in Volts: 115.0 AC SINGLE LOCATION; Overall Height: 1.948 INCHES MINIMUM IN. 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.