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Technical Data Sheet
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20145-2 — COUPLING,SHAFT,FLEXIBLE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

20145-2: COUPLING,SHAFT,FLEXIBLE.

The COUPLING,SHAFT,FLEXIBLE is a the manufacturer industrial component. Key specifications include end_item_identification: THRUSTER, BOW, part_name_assigned_by_controlling_agency: RUBBER ONLY FOR FLEXIBLE COUPLER. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-362-1902, 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
20145-2
NSN: 3120-00-362-1902
NIINs: 003621902, 016665308
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
end_item_identificationTHRUSTER, BOW
part_name_assigned_by_controlling_agencyRUBBER ONLY FOR FLEXIBLE COUPLER
NSN3120-00-362-1902
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 20145-2 · 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
KEY FEATURES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
KEY WIDTH: 0.2400 INCHES MINIMUM AND 0.2450 INCHES MAXIMUM IN
•
OVERALL THICKNESS: 0.2500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND W/SQUARE KEYS
•
DIAMETER: 0.8750 INCHES NOMINAL IN
•
SURFACE CONDITION: GROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 1.4219 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
KEY WIDTH0.2400 INCHES MINIMUM AND 0.2450 INCHES MAXIMUM IN
OVERALL THICKNESS0.2500 INCHES NOMINAL IN
STYLE DESIGNATORROUND W/SQUARE KEYS
DIAMETER0.8750 INCHES NOMINAL IN
SURFACE CONDITIONGROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER1.4219 INCHES NOMINAL IN
KEY QUANTITY4
KEY LENGTH0.1250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
67512Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
H67512Reference document
Same NSN cross-reference
Reference document — Secondary reference
H20145-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 20145-2?
20145-2 is a COUPLING,SHAFT,FLEXIBLE.
What parts can replace 20145-2?
There are 3 known substitutes for 20145-2: 67512, H67512, H20145-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 20145-2?
20145-2 is cataloged in the U.S. Government catalog under NSN 3120-00-362-1902. 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.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.