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Technical Data Sheet
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603511-250 — 603511-250

✓ Government record, cited
— · MOTOR
PRODUCT OVERVIEW

603511-250: 603511-250.

The 603511-250 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 6105-01-679-9099, 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
603511-250
NSN: 6105-01-679-9099
FSC: 6105 — Motors, Electrical
CAGE: 75477 — FM AF, LLC DBA AMERICAN FAN COMPANY (USA)
SPECIFICATIONS
Part Number603511-250
NSN6105-01-679-9099
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: 603511-250 · 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
•
KEYWAY DEPTH: 0.1378 INCHES NOMINAL SINGLE END IN
•
MOUNTING FACILITY TYPE AND QUANTITY: 8 THREADED HOLE(S)
•
DUTY CYCLE: CONTINUOUS
•
PHASE: THREE INPUT
•
SHAFT DIAMETER: 1.3745 INCHES NOMINAL SINGLE END IN
•
FREQUENCY IN HERTZ: 60.0 INPUT
•
MOUNTING METHOD: FACE
TECHNICAL CHARACTERISTICS
KEYWAY DEPTH0.1378 INCHES NOMINAL SINGLE END IN
MOUNTING FACILITY TYPE AND QUANTITY8 THREADED HOLE(S)
DUTY CYCLECONTINUOUS
PHASETHREE INPUT
SHAFT DIAMETER1.3745 INCHES NOMINAL SINGLE END IN
FREQUENCY IN HERTZ60.0 INPUT
OVERALL LENGTH19.88 INCHES IN
MOUNTING METHODFACE
STEP LENGTH3.88 INCHES NOMINAL SINGLE END IN
THREAD LENGTH0.66 INCHES NOMINAL SINGLE END IN
SUBSTITUTES & CROSS-REFERENCES 2
801627-639 REV JReference document
Same NSN cross-reference
Reference document — Drawing number reference only
FF-18509 ITEM 1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 603511-250?
603511-250 is a 603511-250.
What parts can replace 603511-250?
There are 2 known substitutes for 603511-250: 801627-639 REV J, FF-18509 ITEM 1. Substitute compatibility should be verified for your specific system.
What is the NSN for 603511-250?
603511-250 is cataloged in the U.S. Government catalog under NSN 6105-01-679-9099. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
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.