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Technical Data Sheet
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MB5S ✓ Verified by PartsTable
— · MOTOR
WHAT YOU NEED TO KNOW
NEMA frame determines mounting bolt pattern TEFC for outdoor, ODP for dry indoor only
C-face vs foot-mount — different mounting
PRODUCT OVERVIEW

The MB5S is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6115-00-067-5188, 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
MB5S
NSN: 6115-00-067-5188
FSC: 6115
CAGE: 80049 — DEPARTMENT OF THE AIR FORCE (USA)
SPECIFICATIONS
Part NumberMB5S
NSN6115-00-067-5188
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: MB5S · OEM ⚠ VERIFY BEFORE ORDERING NEMA frame size determines mounting bolt pattern — not interchangeable. 56C ≠ 143T bolt pattern. C-face vs foot-mount vs flange — different mounting, same HP doesn't mean drop-in ✓ BROKER TIP TEFC = outdoor/washdown OK. ODP = dry indoor only. TENV = no external fan, explosion-proof areas. 1750 RPM = 4-pole (most common), 3450 RPM = 2-pole, 1150 RPM = 6-pole PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
LINE TO NEUTRAL VOLTAGE IN VOLTS: 120.0
•
CRANKING VOLTAGE IN VOLTS: 24.0
•
ITEM NAME ASSIGNED BY GOVERNMENT AGENCY: GENERATOR SET,DIESEL ENGINE
•
CURRENT TYPE: AC
•
EXCITOR TYPE: SEPARATELY EXCITED
•
FREQUENCY RATING: 60.0 HERTZ NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT36.000 INCHES NOMINAL IN
LINE TO NEUTRAL VOLTAGE IN VOLTS120.0
OVERALL LENGTH72.000 INCHES NOMINAL IN
CRANKING VOLTAGE IN VOLTS24.0
ITEM NAME ASSIGNED BY GOVERNMENT AGENCYGENERATOR SET,DIESEL ENGINE
CURRENT TYPEAC
EXCITOR TYPESEPARATELY EXCITED
FREQUENCY RATING60.0 HERTZ NOMINAL
TEMP RISE RATING IN DEG CELSIUS FOR CONTINUOUS OPERATION60.0
LINE TO LINE VOLTAGE IN VOLTS240.0
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
M12100Interchangeable
interchangeable cross-reference
interchangeable
MILG9546Interchangeable
interchangeable cross-reference
interchangeable
MB5Interchangeable
interchangeable cross-reference
interchangeable
56A56928Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MB5S?
MB5S is a MB5S.
What parts can replace MB5S?
There are 4 known substitutes for MB5S: M12100, MILG9546, MB5 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MB5S?
MB5S is cataloged in the Federal Logistics Information System (FLIS) under NSN 6115-00-067-5188. 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