The Circuit Breaker, cataloged under National Stock Number 5925-01-665-0520, 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 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-665-0520 |
| Primary Part Number | 1658-G21-01-S83-25A |
| 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 | 12.7 MILLIMETERS NOMINAL MM |
| Body Style | SINGLE POLE TYPE |
| Body Width | 32.0 MILLIMETERS NOMINAL MM |
| Body Height | 313.6 MILLIMETERS NOMINAL MM |
| Pole Quantity | 1 |
| Body Length | 27.0 MILLIMETERS NOMINAL MM |
| Trip Release Method | THERMAL OVERLOAD ALL LOCATIONS |
| Center to Center Distance Between Terminals Parallel to Length | 17.5 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 1658-G21-01-S83-25A PRIMARY | E T a Circuit Breakers Dba E T a Products Co of America (USA) |
NSN 5925-01-665-0520 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 5925-01-665-0520 has 1 manufacturer part number on file: 1658-G21-01-S83-25A (E T a Circuit Breakers Dba E T a Products Co of America).
Key specifications for 1658-G21-01-S83-25A: Bushing Length: 12.7 MILLIMETERS NOMINAL MM; Body Style: SINGLE POLE TYPE; Body Width: 32.0 MILLIMETERS NOMINAL MM; Body Height: 313.6 MILLIMETERS NOMINAL MM. 8 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.