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Technical Data Sheet
PartsTable / MRO / SM-B-185207
SM-B-185207 ✓ 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: 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN, body_height: 2.678 INCHES MINIMUM AND 2.698 INCHES MAXIMUM IN, body_length: 5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM IN, boss_height: 0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM 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 5925-00-279-6762, 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→ SM-B-185207
NSN: 5925-00-279-6762
FSC: 5925
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleSINGLE POLE TYPE
body_width1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN
body_height2.678 INCHES MINIMUM AND 2.698 INCHES MAXIMUM IN
body_length5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM IN
boss_height0.208 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN
reset_methodMANUAL
storage_typeGENERAL PURPOSE WAREHOUSE
pole_quantity1
fragility_factorMODERATELY RUGGED
actuator_functionTRIP-RESET
nominal_thread_size0.164 INCHES IN
NSN5925-00-279-6762
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CIRCUIT BREAKER TITLE COMPONENT PN SM-B-185207 MFR CIRCUIT BREAKER
KEY FEATURES
•
MANUAL ACTUATOR TYPE AND QUANTITY: 1 TOGGLE
•
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS: 5000.0 DC SINGLE LOCATION
•
TRIP RELEASE CHARACTERISTIC: TIME DELAY SINGLE LOCATION
•
TRIP RELEASE METHOD: MAGNETIC-HYDRAULIC ALL LOCATIONS
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
BODY LENGTH: 5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM IN
•
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNED: DUSTPROOF AND FUNGUS PROOF
•
BODY HEIGHT: 2.678 INCHES MINIMUM AND 2.698 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MANUAL ACTUATOR TYPE AND QUANTITY1 TOGGLE
MAXIMUM INTERRUPTING CAPACITY CURRENT TYPE AND RATING PER POLE IN AMPS5000.0 DC SINGLE LOCATION
TRIP RELEASE CHARACTERISTICTIME DELAY SINGLE LOCATION
TRIP RELEASE METHODMAGNETIC-HYDRAULIC ALL LOCATIONS
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
BODY LENGTH5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM IN
INCLOSURE PROTECTION TYPE FOR WHICH DESIGNEDDUSTPROOF AND FUNGUS PROOF
BODY HEIGHT2.678 INCHES MINIMUM AND 2.698 INCHES MAXIMUM IN
MATERIALPLASTIC CASE
TRIP DELAY TIME IN SECONDS PER RATED CONTINUOUS CURRENT0.400 MINIMUM AT 200 PCT AND 1.000 MAXIMUM AT 200 PCT SINGLE LOCATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
ZF-01Interchangeable
interchangeable cross-reference
interchangeable
40-321Interchangeable
interchangeable cross-reference
interchangeable
12187Interchangeable
interchangeable cross-reference
interchangeable
716941Interchangeable
interchangeable cross-reference
interchangeable
HL1321Interchangeable
interchangeable cross-reference
interchangeable
5149Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-B-185207?
SM-B-185207 is a CIRCUIT BREAKER. It is classified as a MRO (MRO_GENERAL).
What parts can replace SM-B-185207?
There are 12 known substitutes for SM-B-185207: ZF-01, 40-321, 12187 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-B-185207?
SM-B-185207 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5925-00-279-6762. 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