PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

900J439Circuit Breaker

Westinghouse Electric Corp · NSN 5925-01-234-3115 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-01-234-3115 — this item is cataloged by the U.S. Government under National Stock Number 5925-01-234-3115. Primary manufacturer part number: 900J439.
Features
  • Circuit Breaker — FSC 5925
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Pole Quantity: 3
  • Maximum Continuous Load Current Rating Per Pole: 25.0 AMPERES AC ALL LOCATIONS
  • Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps: 500.0 AC ALL LOCATIONS
  • Criticality Code Justification: ZZZY
  • Frequency in Hertz: 60.0 ALL LOCATIONS
  • Operating Voltage Type and Rating Per Pole in Volts: 150.0 AC ALL LOCATIONS
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-01-234-3115, 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 Westinghouse Electric Corp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-01-234-3115
Primary Part Number900J439
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerWestinghouse Electric Corp
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Pole Quantity3
Maximum Continuous Load Current Rating Per Pole25.0 AMPERES AC ALL LOCATIONS
Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps500.0 AC ALL LOCATIONS
Criticality Code JustificationZZZY
Frequency in Hertz60.0 ALL LOCATIONS
Operating Voltage Type and Rating Per Pole in Volts150.0 AC ALL LOCATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5925-00-876-9217 INTERCHANGEABLE
Circuit Breaker
5925-01-234-3116 INTERCHANGEABLE
Circuit Breaker
5920-01-234-7040 INTERCHANGEABLE
Fuse Unit Assembly
5920-01-235-8901 INTERCHANGEABLE
Fuse Box
5925-01-286-4694458D509G12 INTERCHANGEABLE
Circuit Breaker
Eaton Corporation Dba Eaton Inoac
Cross-Reference Index
Part NumberManufacturer
900J439 Westinghouse Electric Corp (USA)
458D509G12 Westinghouse Electric Corp (USA)
Related Parts
5925-00-876-9217INTERCHANGEABLE
CIRCUIT BREAKER
5925-01-234-3116INTERCHANGEABLE
CIRCUIT BREAKER
5920-01-234-7040INTERCHANGEABLE
FUSE UNIT ASSEMBLY
5920-01-235-8901INTERCHANGEABLE
FUSE BOX
5925-01-286-4694INTERCHANGEABLE
CIRCUIT BREAKER
458D509G12

Frequently Asked Questions

What is NSN 5925-01-234-3115?

NSN 5925-01-234-3115 is a Circuit Breaker, manufactured by Westinghouse Electric Corp, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-01-234-3115?

NSN 5925-01-234-3115 has 2 cross-referenced part numbers: 900J439 (Westinghouse Electric Corp), 458D509G12 (Westinghouse Electric Corp).

What NSN replaces 5925-01-234-3115?

There are 5 known substitutes for 5925-01-234-3115: 5925-00-876-9217, 5925-01-234-3116, 5920-01-234-7040 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 900J439?

Key specifications for 900J439: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS; Pole Quantity: 3; Maximum Continuous Load Current Rating Per Pole: 25.0 AMPERES AC ALL LOCATIONS; Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps: 500.0 AC ALL LOCATIONS. 8 total characteristics are documented in the Federal Logistics Information System.

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