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Technical Data Sheet
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12660-0 — Technical Data Sheet

✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The COUPLING,SHAFT,FLEXIBLE is a the manufacturer industrial component. Key specifications include focusing_type: FIXED, magnification_type: FIXED. This part is cataloged in the Federal Logistics Information System under NSN 3120-00-994-4432, 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
12660-0
NSN: 3120-00-994-4432
FSC: 3120
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
focusing_typeFIXED
magnification_typeFIXED
NSN3120-00-994-4432
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 12660-0 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
TI225AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
662384-126600 RBInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
447345355003InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MILE11276InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
QPL11276InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12660-0?
12660-0 is a COUPLING,SHAFT,FLEXIBLE.
What parts can replace 12660-0?
There are 5 known substitutes for 12660-0: TI225A, 662384-126600 RB, 447345355003 and 2 more. Substitute compatibility should be verified for your specific system.
Is 12660-0 still available?
12660-0 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026