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ST4M206-4 — BEARING,ROLLER,TRACK ROLLER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

ST4M206-4: BEARING,ROLLER,TRACK ROLLER.

The BEARING,ROLLER,TRACK ROLLER is a the manufacturer industrial component. Key specifications include bore_diameter: 0.2490 INCHES MINIMUM AND 0.2490 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM0.2500 INCHES MAXIMUM IN, seal_quantity: 22, inner_ring_width: 0.9900 INCHES MINIMUM AND 0.9900 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM1.0000 INCHES MAXIMUM IN, outer_ring_width: 0.9350 INCHES MINIMUM AND 0.9350 INCHES MINIMUM AND 0.9400 INCHES MAXIMUM0.9400 INCHES MAXIMUM IN, special_features: 80 PCT FULL OF SPECIFIED LUBRICANT; SEAL COLOR-ORANGE80 PCT FULL OF SPECIFIED LUBRICANT; SEAL COLOR-ORANGE, bearing_seal_type: CONTACTCONTACT. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-140-7840, 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
ST4M206-4
NSN: 3110-01-140-7840
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
bore_diameter0.2490 INCHES MINIMUM AND 0.2490 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM0.2500 INCHES MAXIMUM IN
seal_quantity22
inner_ring_width0.9900 INCHES MINIMUM AND 0.9900 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM1.0000 INCHES MAXIMUM IN
outer_ring_width0.9350 INCHES MINIMUM AND 0.9350 INCHES MINIMUM AND 0.9400 INCHES MAXIMUM0.9400 INCHES MAXIMUM IN
special_features80 PCT FULL OF SPECIFIED LUBRICANT; SEAL COLOR-ORANGE80 PCT FULL OF SPECIFIED LUBRICANT; SEAL COLOR-ORANGE
bearing_seal_typeCONTACTCONTACT
surface_treatmentPASSIVATE OUTER RINGPASSIVATE OUTER RING
lubrication_materialGREASEGREASE
lubrication_material_document_and_classificationMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSEMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-01-140-7840
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: ST4M206-4 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BEARING SEAL TYPE: CONTACTCONTACT
•
LUBRICATION MATERIAL: GREASEGREASE
•
OUTER RING WIDTH: 0.9350 INCHES MINIMUM AND 0.9350 INCHES MINIMUM AND 0.9400 INCHES MAXIMUM0.9400 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE INNER RINGPASSIVATE INNER RING
TECHNICAL CHARACTERISTICS
BEARING SEAL TYPECONTACTCONTACT
LUBRICATION MATERIALGREASEGREASE
OUTER RING WIDTH0.9350 INCHES MINIMUM AND 0.9350 INCHES MINIMUM AND 0.9400 INCHES MAXIMUM0.9400 INCHES MAXIMUM IN
SPECIAL FEATURES80 PCT FULL OF SPECIFIED LUBRICANT; SEAL COLOR-ORANGE80 PCT FULL OF SPECIFIED LUBRICANT; SEAL COLOR-ORANGE
SURFACE TREATMENTPASSIVATE INNER RINGPASSIVATE INNER RING
SURFACE TREATMENTPASSIVATE OUTER RINGPASSIVATE OUTER RING
SURFACE TREATMENTPASSIVATE ROLLERPASSIVATE ROLLER
SURFACE TREATMENTPASSIVATE WASHERPASSIVATE WASHER
SEAL QUANTITY22
BORE DIAMETER0.2490 INCHES MINIMUM AND 0.2490 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM0.2500 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 1
AE52702Reference 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 ST4M206-4?
ST4M206-4 is a BEARING,ROLLER,TRACK ROLLER.
What parts can replace ST4M206-4?
There is 1 known substitute for ST4M206-4: AE52702. Substitute compatibility should be verified for your specific system.
What is the NSN for ST4M206-4?
ST4M206-4 is cataloged in the U.S. Government catalog under NSN 3110-01-140-7840. 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.