PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M55629/1-331Circuit Breaker

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5925-01-575-3243 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-01-575-3243 — this item is cataloged by the U.S. Government under National Stock Number 5925-01-575-3243. Primary manufacturer part number: M55629/1-331.
Features
  • Circuit Breaker — FSC 5925
  • 2 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-01-575-3243, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. This item has 2 commercial cross-references from 1 manufacturer, 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
NSN5925-01-575-3243
Primary Part NumberM55629/1-331
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5925-00-487-1498 INTERCHANGEABLE
Circuit Breaker
5925-01-005-9799 INTERCHANGEABLE
Circuit Breaker
5925-01-044-5508 INTERCHANGEABLE
Circuit Breaker
Cross-Reference Index
Part NumberManufacturer
M55629/1-331 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-55629/1F Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5925-00-487-1498INTERCHANGEABLE
CIRCUIT BREAKER
5925-01-005-9799INTERCHANGEABLE
CIRCUIT BREAKER
5925-01-044-5508INTERCHANGEABLE
CIRCUIT BREAKER

Frequently Asked Questions

What is NSN 5925-01-575-3243?

NSN 5925-01-575-3243 is a Circuit Breaker, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-01-575-3243?

NSN 5925-01-575-3243 has 2 cross-referenced part numbers: M55629/1-331 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-55629/1F (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5925-01-575-3243?

There are 3 known substitutes for 5925-01-575-3243: 5925-00-487-1498, 5925-01-005-9799, 5925-01-044-5508. Verify interchangeability with system specifications before substitution.

What are the specifications of M55629/1-331?

Key specifications for M55629/1-331: End Item Identification: AN/FPS-132; Part Name Assigned by Controlling Agency: CIRCUIT BREAKER. 2 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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