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Technical Data Sheet
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66D44459 ✓ 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 66D44459 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 6115-00-081-2032, 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
66D44459
NSN: 6115-00-081-2032
FSC: 6115
CAGE: 98749 — SACRAMENTO AIR LOGISTICS CENTER SM-ALC/LIIL (USA)
SPECIFICATIONS
Part Number66D44459
NSN6115-00-081-2032
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: 66D44459 · 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
•
TEMP RISE RATING IN DEG CELSIUS FOR CONTINUOUS OPERATION: 60.0
•
PHASE: THREE AND SINGLE
•
AC WATTAGE RATING: 150.0 KILOWATTS AND 112.5 KILOWATTS
•
IDENTIFYING NUMBER: 5SJ4447+262 PART NO.
•
LINE TO NEUTRAL VOLTAGE IN VOLTS: 240.0 AND 120.0 AND 220.0 AND 110.0
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INCLOSURE TYPE: FULLY INCLOSED
•
LINE TO LINE VOLTAGE IN VOLTS: 416.0 AND 208.0 AND 150.0 AND 380.0 AND 190.0 AND 220.0
TECHNICAL CHARACTERISTICS (FLIS)
TEMP RISE RATING IN DEG CELSIUS FOR CONTINUOUS OPERATION60.0
PHASETHREE AND SINGLE
AC WATTAGE RATING150.0 KILOWATTS AND 112.5 KILOWATTS
IDENTIFYING NUMBER5SJ4447+262 PART NO.
LINE TO NEUTRAL VOLTAGE IN VOLTS240.0 AND 120.0 AND 220.0 AND 110.0
INCLOSURE TYPEFULLY INCLOSED
LINE TO LINE VOLTAGE IN VOLTS416.0 AND 208.0 AND 150.0 AND 380.0 AND 190.0 AND 220.0
OVERALL HEIGHT86.000 INCHES NOMINAL IN
OVERALL LENGTH141.000 INCHES NOMINAL IN
PRIME MOVER IDENTIFYING NUMBERNRT0-6B1 MODEL NO.
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
55D6246-2Interchangeable
interchangeable cross-reference
interchangeable
MB16Interchangeable
interchangeable cross-reference
interchangeable
D52-640Interchangeable
interchangeable cross-reference
interchangeable
MILG26727Interchangeable
interchangeable cross-reference
interchangeable
MB18Interchangeable
interchangeable cross-reference
interchangeable
66D44466Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 66D44459?
66D44459 is a 66D44459.
What parts can replace 66D44459?
There are 16 known substitutes for 66D44459: 55D6246-2, MB16, D52-640 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 66D44459?
66D44459 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6115-00-081-2032. 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