PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B12-8Thermal Release,circuit Breaker

Schneider Electric Usa, Inc. Dba Schneider Electric · NSN 5925-00-047-3859 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-00-047-3859 — this item is cataloged by the U.S. Government under National Stock Number 5925-00-047-3859. Primary manufacturer part number: B12-8.
Features
  • Thermal Release,circuit Breaker — FSC 5925
  • Overload Rating in Amps: 11.500 NOMINAL
  • Body Material: STEEL
  • Mounting Configuration: MOUNTED BY TWO 3/16 IN. DIA MTG HOLES SPACED 1-3/8 IN. C TO C IN
  • 4 verified cross-references
  • Primary manufacturer: Schneider Electric Usa, Inc. Dba Schneider Electric
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermal Release,circuit Breaker, cataloged under National Stock Number 5925-00-047-3859, is classified within Federal Supply Class 5925 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Schneider Electric Usa, Inc. Dba Schneider Electric. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5925-00-047-3859
Primary Part NumberB12-8
Item NameThermal Release,circuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerSchneider Electric Usa, Inc. Dba Schneider Electric
StatusCANCELLED
Overload Rating in Amps11.500 NOMINAL
Body MaterialSTEEL
Mounting ConfigurationMOUNTED BY TWO 3/16 IN. DIA MTG HOLES SPACED 1-3/8 IN. C TO C IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
3110-00-004-334342420-251 INTERCHANGEABLE
Bearing,roller,needle
Jtekt Bearings North America Llc Div Kbna - Ord 1
3110-00-120-3086B-128 INTERCHANGEABLE
Bearing,roller,needle
Jtekt Bearings North America Llc Div Kbna - Ord 1
3030-00-529-0295 INTERCHANGEABLE
Belt,v
3030-00-640-4355 INTERCHANGEABLE
Belts,v,matched Set
3110-00-690-184447-140-238 INTERCHANGEABLE
Bearing,roller,needle
Timken Aerospace, Inc Dba Torrington Product
2940-01-239-611811-5703 INTERCHANGEABLE
Filter Element,fluid
Thermo King Corporation Dba Phoenix Global Distirbution.
5310-01-256-9257B12-8 INTERCHANGEABLE
Washer,flat
Roller Bearing Co of America, Inc Div Pic Design
4330-01-353-8067B128 INTERCHANGEABLE
Pneumatic Muffler,exhaust-Intake
Allied Witan Co Dba Alwitco
3110-01-494-9112 INTERCHANGEABLE
Bearing,roller,needle
Cross-Reference Index
Part NumberManufacturer
B12-8 Schneider Electric Usa, Inc. (USA)
B12-8 PRIMARY Schneider Electric Usa, Inc. Dba Schneider Electric (USA)
B12.8 Schneider Electric Usa, Inc. (USA)
B12-8 Schneider Electric Usa, Inc. (USA)
Related Parts
3110-00-004-3343INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
42420-251
3110-00-120-3086INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
B-128
3030-00-529-0295INTERCHANGEABLE
BELT,V
3030-00-640-4355INTERCHANGEABLE
BELTS,V,MATCHED SET
3110-00-690-1844INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
47-140-238
2940-01-239-6118INTERCHANGEABLE
FILTER ELEMENT,FLUID
11-5703
5310-01-256-9257INTERCHANGEABLE
WASHER,FLAT
B12-8
4330-01-353-8067INTERCHANGEABLE
PNEUMATIC MUFFLER,EXHAUST-INTAKE
B128
3110-01-494-9112INTERCHANGEABLE
BEARING,ROLLER,NEEDLE

Frequently Asked Questions

What is NSN 5925-00-047-3859?

NSN 5925-00-047-3859 is a Thermal Release,circuit Breaker, manufactured by Schneider Electric Usa, Inc. Dba Schneider Electric, classified under FSC 5925 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5925-00-047-3859?

NSN 5925-00-047-3859 has 4 cross-referenced part numbers: B12-8 (Schneider Electric Usa, Inc.), B12-8 (Schneider Electric Usa, Inc. Dba Schneider Electric), B12.8 (Schneider Electric Usa, Inc.), B12-8 (Schneider Electric Usa, Inc.).

What NSN replaces 5925-00-047-3859?

There are 9 known substitutes for 5925-00-047-3859: 3110-00-004-3343, 3110-00-120-3086, 3030-00-529-0295 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B12-8?

Key specifications for B12-8: Overload Rating in Amps: 11.500 NOMINAL; Body Material: STEEL; Mounting Configuration: MOUNTED BY TWO 3/16 IN. DIA MTG HOLES SPACED 1-3/8 IN. C TO C IN; Overall Depth: 0.500 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5925-00-047-3859 still in active supply?

NSN 5925-00-047-3859 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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