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Technical Data Sheet
7943891-1 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The CIRCUIT BREAKER is a the manufacturer industrial component. Key specifications include overall_width: 3.820 INCHES MAXIMUM IN, overall_height: 4.850 INCHES MAXIMUM IN, overall_length: 4.980 INCHES MAXIMUM IN, frequency_in_hertz: 400.0 ALL LOCATIONS, reference_number_differentiating_characteristics: AS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO., operating_voltage_type_and_rating_per_pole_in_volts: 208.0 AC ALL LOCATIONS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5925-01-293-3604, 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 7943891-1
NSN: 5925-01-293-3604
FSC: 5925
CAGE: 88277 — THE BOEING COMPANY (USA)
SPECIFICATIONS
overall_width3.820 INCHES MAXIMUM IN
pole_quantity5
overall_height4.850 INCHES MAXIMUM IN
overall_length4.980 INCHES MAXIMUM IN
frequency_in_hertz400.0 ALL LOCATIONS
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO.
operating_voltage_type_and_rating_per_pole_in_volts208.0 AC ALL LOCATIONS
NSN5925-01-293-3604
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CIRCUIT BREAKER TITLE COMPONENT PN 7943891-1 MFR CIRCUIT BREAKER
KEY FEATURES
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS: 208.0 AC ALL LOCATIONS
POLE QUANTITY: 5
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO.
FREQUENCY IN HERTZ: 400.0 ALL LOCATIONS
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT4.850 INCHES MAXIMUM IN
OVERALL WIDTH3.820 INCHES MAXIMUM IN
OPERATING VOLTAGE TYPE AND RATING PER POLE IN VOLTS208.0 AC ALL LOCATIONS
POLE QUANTITY5
OVERALL LENGTH4.980 INCHES MAXIMUM IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY THE SOURCE CONTROL DWG NO.
FREQUENCY IN HERTZ400.0 ALL LOCATIONS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
S3-27Interchangeable
interchangeable cross-reference
interchangeable
A2-27Interchangeable
interchangeable cross-reference
interchangeable
367R2 1-2X1 1-2Interchangeable
interchangeable cross-reference
interchangeable
S-327 2.5FX1.5MBRInterchangeable
interchangeable cross-reference
interchangeable
REDUCERH0SEInterchangeable
interchangeable cross-reference
interchangeable
101J5862Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7943891-1?
7943891-1 is a CIRCUIT BREAKER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 7943891-1?
There are 12 known substitutes for 7943891-1: S3-27, A2-27, 367R2 1-2X1 1-2 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7943891-1?
7943891-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5925-01-293-3604. This indicates validated use in U.S. government and defense supply chains.
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