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1778502 — MOTOR,ALTERNATING CURRENT

✓ Government record, cited
WESTINGHOUSE ELECTRIC CORP · MOTOR
PRODUCT OVERVIEW

1778502: MOTOR,ALTERNATING CURRENT.

The MOTOR,ALTERNATING CURRENT is a WESTINGHOUSE ELECTRIC CORP industrial component. Key specifications include PHASE: THREE INPUT, TEMP RATING: 40.0 OPERATING CELSIUS AND 55.0 AMBIENT CELSIUS, KEYWAY DEPTH: 0.125 INCHES NOMINAL SINGLE END IN, KEYWAY WIDTH: 0.250 INCHES NOMINAL SINGLE END IN, POWER RATING: 3.000 HORSEPOWER OUTPUT, WINDING TYPE: INDUCTION-SQUIRREL CAGE. This part is cataloged in the U.S.

Government catalog under NSN 6105-00-882-0840, 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
1778502
NSN: 6105-00-882-0840
FSC: 6105 — Motors, Electrical
CAGE: 79500 — WESTINGHOUSE ELECTRIC CORP (USA)
SPECIFICATIONS
PHASETHREE INPUT
TEMP RATING40.0 OPERATING CELSIUS AND 55.0 AMBIENT CELSIUS
KEYWAY DEPTH0.125 INCHES NOMINAL SINGLE END IN
KEYWAY WIDTH0.250 INCHES NOMINAL SINGLE END IN
POWER RATING3.000 HORSEPOWER OUTPUT
WINDING TYPEINDUCTION-SQUIRREL CAGE
KEYWAY LENGTH2.750 INCHES NOMINAL SINGLE END IN
OVERALL WIDTH13.297 INCHES IN
COOLING METHODSELF-VENTILATED
OVERALL HEIGHT10.438 INCHES IN
OVERALL LENGTH15.251 INCHES IN
SHAFT DIAMETER1.125 INCHES NOMINAL SINGLE END IN
NSN6105-00-882-0840
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: 1778502 · WESTINGHOUSE ELECTRIC CORP ⚠ 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
•
KEYWAY DEPTH: 0.125 INCHES NOMINAL SINGLE END IN
•
MOUNTING FACILITY TYPE AND QUANTITY: 4 UNTHREADED HOLE(S)
•
DUTY CYCLE: CONTINUOUS
•
PHASE: THREE INPUT
•
SHAFT DIAMETER: 1.125 INCHES NOMINAL SINGLE END IN
•
FREQUENCY IN HERTZ: 60.0 INPUT
•
SHAFT CENTER TO MOUNTING SURFACE DISTANCE: 5.250 INCHES SINGLE END IN
TECHNICAL CHARACTERISTICS
KEYWAY DEPTH0.125 INCHES NOMINAL SINGLE END IN
MOUNTING FACILITY TYPE AND QUANTITY4 UNTHREADED HOLE(S)
DUTY CYCLECONTINUOUS
PHASETHREE INPUT
SHAFT DIAMETER1.125 INCHES NOMINAL SINGLE END IN
FREQUENCY IN HERTZ60.0 INPUT
SHAFT CENTER TO MOUNTING SURFACE DISTANCE5.250 INCHES SINGLE END IN
OVERALL LENGTH15.251 INCHES IN
WINDING TYPEINDUCTION-SQUIRREL CAGE
MOUNTING METHODFIXED BASE
SUBSTITUTES & CROSS-REFERENCES 5
64313Reference document
Same NSN cross-reference
Reference document — Secondary reference
1778052Reference document
Same NSN cross-reference
Reference document — Secondary reference
E20783Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
P18G11AND42384-17-AReference document
Same NSN cross-reference
Reference document — Secondary reference
5K213AG201Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1778502?
1778502 is a MOTOR,ALTERNATING CURRENT manufactured by WESTINGHOUSE ELECTRIC CORP.
What parts can replace 1778502?
There are 5 known substitutes for 1778502: 64313, 1778052, E20783 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1778502?
1778502 is cataloged in the U.S. Government catalog under NSN 6105-00-882-0840. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.