The Circuit Breaker, cataloged under National Stock Number 5925-01-673-2120, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Siemens Energy and Automation Inc Ite Circuit Protection Div. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 — Circuit Breakers (FSG 59) |
| Manufacturers | Siemens Energy and Automation Inc Ite Circuit Protection Div (CAGE 66842) |
| Parameter | Value |
|---|---|
| NSN | 5925-01-673-2120 |
| Primary Part Number | 12556820 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Siemens Energy and Automation Inc Ite Circuit Protection Div |
| Status | ACTIVE |
| 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 |
|---|---|
| SHLD6B500LSI | Siemens Energy and Automation Inc Ite Circuit Protection Div (USA) |
| SHLD69500NT | Siemens Energy and Automation Inc Ite Circuit Protection Div (USA) |
| 12556820 PRIMARY | Siemens Energy and Automation Inc Ite Circuit Protection Div (USA) |
| Reference | Meaning |
|---|---|
| 12556820 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5925-01-673-2120 is a Circuit Breaker, manufactured by Siemens Energy and Automation Inc Ite Circuit Protection Div, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-673-2120 has 3 manufacturer part numbers on file: SHLD6B500LSI (Siemens Energy and Automation Inc Ite Circuit Protection Div), SHLD69500NT (Siemens Energy and Automation Inc Ite Circuit Protection Div), 12556820 (Siemens Energy and Automation Inc Ite Circuit Protection Div).
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.