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Technical Data Sheet
PartsTable / MRO / MS39066-1
MS39066-1 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The CIRCUIT BREAKER is a the manufacturer industrial component. Key specifications include material: PLASTIC CASE, body_style: SINGLE POLE TYPE, body_width: 0.750 INCHES NOMINAL IN, reset_method: AUTOMATIC, storage_type: GENERAL PURPOSE WAREHOUSE, overall_length: 2.190 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5925-00-912-2516, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ MS39066-1
NSN: 5925-00-912-2516
FSC: 5925
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialPLASTIC CASE
body_styleSINGLE POLE TYPE
body_width0.750 INCHES NOMINAL IN
reset_methodAUTOMATIC
storage_typeGENERAL PURPOSE WAREHOUSE
pole_quantity1
overall_length2.190 INCHES NOMINAL IN
fragility_factorMODERATELY RUGGED
nominal_thread_size0.138 INCHES IN
trip_release_methodTHERMAL SINGLE LOCATION
circuit_protection_typeOVERCURRENT SINGLE LOCATION
thread_quantity_per_inch32
NSN5925-00-912-2516
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CIRCUIT BREAKER TITLE COMPONENT PN MS39066-1 MFR CIRCUIT BREAKER
KEY FEATURES
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT: 8.000 MINIMUM AT 200 PCT AND 50.000 MAXIMUM AT 200 PCT SINGLE LOCATION
•
CIRCUIT PROTECTION TYPE: OVERCURRENT SINGLE LOCATION
•
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT: 138.0 SINGLE LOCATION
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
TRIP RELEASE AMBIENT TEMP RATING: 25.0 CELSIUS NOMINAL SINGLE LOCATION DEGC
•
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED: VIBRATION RESISTANT AND SHOCK RESISTANT AND SALT SPRAY PROOF AND FUNGUS RESISTANT
•
INTERNAL TRIP RELEASE CONFIGURATION: SERIES TRIP SINGLE LOCATION
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT8.000 MINIMUM AT 200 PCT AND 50.000 MAXIMUM AT 200 PCT SINGLE LOCATION
CIRCUIT PROTECTION TYPEOVERCURRENT SINGLE LOCATION
ULTIMATE TRIP RATING OF CONTINUOUS CURRENT RATING PER POLE IN PERCENT138.0 SINGLE LOCATION
NOMINAL THREAD SIZE0.138 INCHES IN
TRIP RELEASE AMBIENT TEMP RATING25.0 CELSIUS NOMINAL SINGLE LOCATION DEGC
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNEDVIBRATION RESISTANT AND SHOCK RESISTANT AND SALT SPRAY PROOF AND FUNGUS RESISTANT
INTERNAL TRIP RELEASE CONFIGURATIONSERIES TRIP SINGLE LOCATION
TEST DATA DOCUMENT81349-MIL-C-13516 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS28.0 DC SINGLE LOCATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
5925009297718Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-13516-5Interchangeable
interchangeable cross-reference
interchangeable
M13516/5-2Interchangeable
interchangeable cross-reference
interchangeable
13207E2942FN31Interchangeable
interchangeable cross-reference
interchangeable
PSA-20Interchangeable
interchangeable cross-reference
interchangeable
12957123Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS39066-1?
MS39066-1 is a CIRCUIT BREAKER. It is classified as a MRO (MRO_GENERAL).
What parts can replace MS39066-1?
There are 14 known substitutes for MS39066-1: 5925009297718, MIL-C-13516-5, M13516/5-2 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS39066-1?
MS39066-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5925-00-912-2516. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026