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Technical Data Sheet
PartsTable / COMPONENT / C14MILG3278
C14MILG3278 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The BEARING,ROLLER,AIRFRAME is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEAL, bore_diameter: 0.8750 INCHES NOMINAL IN, inner_ring_width: 1.1250 INCHES NOMINAL IN, outer_ring_width: 1.2500 INCHES NOMINAL IN, special_features: LUBRICANT HOLE AND GROOVE IN OD OF OUTER RING,5 DEG SELF-ALIGNMENT IN EITHER DIRECTION, style_designator: CONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-516-6131, 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
C14MILG3278
NSN: 3110-00-516-6131
FSC: 3110
CAGE: 77896 — REXNORD INDUSTRIES, LLC DIV AEROSSPACE BEARING OPERATION (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEAL
bore_diameter0.8750 INCHES NOMINAL IN
seal_quantity2
inner_ring_width1.1250 INCHES NOMINAL IN
outer_ring_width1.2500 INCHES NOMINAL IN
special_featuresLUBRICANT HOLE AND GROOVE IN OD OF OUTER RING,5 DEG SELF-ALIGNMENT IN EITHER DIRECTION
style_designatorCONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING
bearing_seal_typeCONTACT
surface_treatmentCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
lubrication_materialGREASE
overall_outside_diameter2.6250 INCHES NOMINAL IN
lubrication_material_document_and_classificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-00-516-6131
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: C14MILG3278 · 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
•
OVERALL OUTSIDE DIAMETER: 2.6250 INCHES NOMINAL IN
•
BORE DIAMETER: 0.8750 INCHES NOMINAL IN
•
SEAL QUANTITY: 2
•
LUBRICATION MATERIAL: GREASE
•
BEARING SEAL TYPE: CONTACT
•
INNER RING WIDTH: 1.1250 INCHES NOMINAL IN
•
OUTER RING WIDTH: 1.2500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER2.6250 INCHES NOMINAL IN
BORE DIAMETER0.8750 INCHES NOMINAL IN
SEAL QUANTITY2
LUBRICATION MATERIALGREASE
BEARING SEAL TYPECONTACT
INNER RING WIDTH1.1250 INCHES NOMINAL IN
SPECIAL FEATURESLUBRICANT HOLE AND GROOVE IN OD OF OUTER RING,5 DEG SELF-ALIGNMENT IN EITHER DIRECTION
OUTER RING WIDTH1.2500 INCHES NOMINAL IN
STYLE DESIGNATORCONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING
MATERIALCOPPER ALLOY RETAINER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
C14Interchangeable
interchangeable cross-reference
interchangeable
B107.410Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-21262Interchangeable
interchangeable cross-reference
interchangeable
A318Interchangeable
interchangeable cross-reference
interchangeable
652-F-04Interchangeable
interchangeable cross-reference
interchangeable
I400Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C14MILG3278?
C14MILG3278 is a BEARING,ROLLER,AIRFRAME.
What parts can replace C14MILG3278?
There are 15 known substitutes for C14MILG3278: C14, B107.410, MIL-C-21262 and 12 more. Substitute compatibility should be verified for your specific system.
Is C14MILG3278 still available?
C14MILG3278 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: July 2026