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SM-C-879280 — BEARING,BALL,AIRFRAME

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

SM-C-879280: BEARING,BALL,AIRFRAME.

The BEARING,BALL,AIRFRAME is a the manufacturer industrial component. Key specifications include bore_diameter: 3.0625 INCHES NOMINAL3.0625 INCHES NOMINAL IN, load_direction: RADIALRADIAL, inner_ring_width: 0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL IN, outer_ring_width: 0.3120 INCHES NOMINAL0.3120 INCHES NOMINAL IN, style_designator: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURESINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE, lubrication_material: OILOIL. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-346-2955, 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
SM-C-879280
NSN: 3110-01-346-2955
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 32828 — KAYDON CORPORATION DBA KAYDON CORP (USA)
SPECIFICATIONS
bore_diameter3.0625 INCHES NOMINAL3.0625 INCHES NOMINAL IN
load_directionRADIALRADIAL
inner_ring_width0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL IN
outer_ring_width0.3120 INCHES NOMINAL0.3120 INCHES NOMINAL IN
special_featuresAEROSHELL GREASE 22,PHENOLIC RETAINER SHALL BE VACUUM IMPREGNATED W/BASE OILAEROSHELL GREASE 22,PHENOLIC RETAINER SHALL BE VACUUM IMPREGNATED W/BASE OIL
style_designatorSINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURESINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
lubrication_materialOILOIL
overall_outside_diameter3.8750 INCHES NOMINAL3.8750 INCHES NOMINAL IN
retainer_fabrication_methodMACHINED
NSN3110-01-346-2955
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: SM-C-879280 · 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
•
RETAINER FABRICATION METHOD: MACHINED
•
LUBRICATION MATERIAL: OILOIL
•
OUTER RING WIDTH: 0.3120 INCHES NOMINAL0.3120 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURESINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
•
OVERALL OUTSIDE DIAMETER: 3.8750 INCHES NOMINAL3.8750 INCHES NOMINAL IN
•
LOAD DIRECTION: RADIALRADIAL
•
BORE DIAMETER: 3.0625 INCHES NOMINAL3.0625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
LUBRICATION MATERIALOILOIL
OUTER RING WIDTH0.3120 INCHES NOMINAL0.3120 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURESINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
OVERALL OUTSIDE DIAMETER3.8750 INCHES NOMINAL3.8750 INCHES NOMINAL IN
LOAD DIRECTIONRADIALRADIAL
SPECIAL FEATURESAEROSHELL GREASE 22,PHENOLIC RETAINER SHALL BE VACUUM IMPREGNATED W/BASE OILAEROSHELL GREASE 22,PHENOLIC RETAINER SHALL BE VACUUM IMPREGNATED W/BASE OIL
BORE DIAMETER3.0625 INCHES NOMINAL3.0625 INCHES NOMINAL IN
INNER RING WIDTH0.3750 INCHES NOMINAL0.3750 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 5
549EESD600KFA5P510LG4UBReference document
Same NSN cross-reference
Reference document — Secondary reference
S4962MCE7P715LO2Reference document
Same NSN cross-reference
Reference document — Secondary reference
04838Reference document
Same NSN cross-reference
Reference document — Secondary reference
3TKCR49-62-62Reference document
Same NSN cross-reference
Reference document — Secondary reference
13100001Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SM-C-879280?
SM-C-879280 is a BEARING,BALL,AIRFRAME.
What parts can replace SM-C-879280?
There are 5 known substitutes for SM-C-879280: 549EESD600KFA5P510LG4UB, S4962MCE7P715LO2, 04838 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-C-879280?
SM-C-879280 is cataloged in the U.S. Government catalog under NSN 3110-01-346-2955. 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.