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121-989 — 121-989

✓ Government record, cited
— · MOTOR
PRODUCT OVERVIEW

121-989: 121-989.

The 121-989 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 6105-00-072-5655, 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
121-989
NSN: 6105-00-072-5655
FSC: 6105 — Motors, Electrical
CAGE: 45934 — ONTIC ENGINEERING & MANUFACTURING, INC DBA ONTIC US (USA)
SPECIFICATIONS
Part Number121-989
NSN6105-00-072-5655
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: 121-989 · 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
•
TERMINAL QUANTITY: 4
•
TERMINAL TYPE: WIRE LEAD
•
OVERALL DIAMETER: 2.250 INCHES NOMINAL IN
•
INSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
MAIN POLE QUANTITY: 4
TECHNICAL CHARACTERISTICS
TERMINAL QUANTITY4
TERMINAL TYPEWIRE LEAD
OVERALL DIAMETER2.250 INCHES NOMINAL IN
OVERALL LENGTH2.750 INCHES NOMINAL IN
INSIDE DIAMETER1.250 INCHES NOMINAL IN
MAIN POLE QUANTITY4
OTHER ITEMS IN FSC 6105 — Motors, Electrical
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6105-00-001-1471 6105-00-001-1473 6105-00-001-1497 6105-00-001-1710 6105-00-001-1712 6105-00-001-2097 6105-00-001-2098 6105-00-001-3680
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 121-989?
121-989 is a 121-989.
What is the NSN for 121-989?
121-989 is cataloged in the U.S. Government catalog under NSN 6105-00-072-5655. This indicates validated use in U.S. government and defense supply chains.
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U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.