The Circuit Breaker, cataloged under National Stock Number 5925-01-631-2136, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division. Government technical data includes 1 specification, 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 | 5925-01-631-2136 |
| Primary Part Number | NGB1B020B |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division |
| Status | ACTIVE |
| Pole Quantity | 1 |
| 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 |
|---|---|
| NGB1B020B PRIMARY | Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division (USA) |
NSN 5925-01-631-2136 is a Circuit Breaker, manufactured by Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-631-2136 has 1 manufacturer part number on file: NGB1B020B (Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division).
Key specifications for NGB1B020B: Pole Quantity: 1; Special Features: DESCRIPTION: GB FRAME TYPE NGB FRAME (PANEL BOARD MOUNT); CONTINOUS CURRENT RATING AT 40DEG C: 20 AMP; LOAD LUGS ARE INCLUDED AS STANDARD; HACR RATED DEGC; Part Name Assigned by Controlling Agency: CIRCUIT BREAKER; MOLDED CASE CIRCUIT BREAKER; End Item Identification: STMS TRAILOR. 1 specification is 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.