PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B563Circuit Breaker

Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan · NSN 5925-01-485-9233 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-01-485-9233 — this item is cataloged by the U.S. Government under National Stock Number 5925-01-485-9233. Primary manufacturer part number: B563.
Features
  • Circuit Breaker — FSC 5925
  • 3 verified cross-references
  • Primary manufacturer: Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-01-485-9233, 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 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-01-485-9233
Primary Part NumberB563
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerLockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-391-8341B563 INTERCHANGEABLE
Strainer Element,sediment
Itt Fluid Technology Corp Itt Mcdonnell and Miller
5340-00-443-5915 INTERCHANGEABLE
Plug,protective,dust and Moistur
3120-01-284-4693B56-3 INTERCHANGEABLE
Bearing,sleeve
Altra Industrial Motion Corp.
Cross-Reference Index
Part NumberManufacturer
B563 PRIMARY Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
APGN-66-29863-1 Airpax Corporation Llc Dba Airpax Corporation Llc (USA)
IUGN66-29863-1 Sensata Technologies, Inc. Div Sensata Attleboro (USA)
Related Parts
4730-00-391-8341INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
B563
5340-00-443-5915INTERCHANGEABLE
PLUG,PROTECTIVE,DUST AND MOISTUR
3120-01-284-4693INTERCHANGEABLE
BEARING,SLEEVE
B56-3

Frequently Asked Questions

What is NSN 5925-01-485-9233?

NSN 5925-01-485-9233 is a Circuit Breaker, manufactured by Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-01-485-9233?

NSN 5925-01-485-9233 has 3 cross-referenced part numbers: B563 (Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan), APGN-66-29863-1 (Airpax Corporation Llc Dba Airpax Corporation Llc), IUGN66-29863-1 (Sensata Technologies, Inc. Div Sensata Attleboro).

What NSN replaces 5925-01-485-9233?

There are 3 known substitutes for 5925-01-485-9233: 4730-00-391-8341, 5340-00-443-5915, 3120-01-284-4693. Verify interchangeability with system specifications before substitution.

What are the specifications of B563?

Key specifications for B563: End Item Identification: CABINET PROCESSOR. 1 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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