PartsTable
Technical Data Sheet
MR4-0MILG3278A ✓ 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,ROD END is a the manufacturer industrial component. Key specifications include material: STEEL ROLLER, shank_style: EXTERNALLY THREADED, thread_class: 3A A, bore_diameter: 0.2500 INCHES NOMINAL IN, alignment_type: SELF-ALIGNING, overall_length: 2.3820 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-3295, 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
MR4-0MILG3278A
NSN: 3110-00-227-3295
FSC: 3110
CAGE: 77896 — REXNORD INDUSTRIES, LLC DIV AEROSSPACE BEARING OPERATION (USA)
SPECIFICATIONS
materialSTEEL ROLLER
shank_styleEXTERNALLY THREADED
thread_class3A A
bore_diameter0.2500 INCHES NOMINAL IN
alignment_typeSELF-ALIGNING
overall_length2.3820 INCHES NOMINAL IN
shank_diameter0.3750 INCHES NOMINAL IN
shield_quantity2
inner_ring_width0.5000 INCHES NOMINAL IN
outer_ring_width0.3580 INCHES NOMINAL IN
special_featuresLUBRICATION FITTING LOCATED OPPOSITE THE THREADED SHANK
style_designatorSINGLE ROW, CONCAVE ROLLERS
NSN3110-00-227-3295
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MR4-0MILG3278A · 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
SHANK DIAMETER: 0.3750 INCHES NOMINAL IN
THREAD DIRECTION: RIGHT-HAND
THREAD CLASS: 3A A
SELF-ALIGNMENT LOCATION: INTERNAL
ALIGNMENT TYPE: SELF-ALIGNING
LUBRICATION MATERIAL: GREASE
SELF-ALIGNMENT ANGLE: 10.00 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
SHANK DIAMETER0.3750 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A A
SPECIAL FEATURESLUBRICATION FITTING LOCATED OPPOSITE THE THREADED SHANK
SELF-ALIGNMENT LOCATIONINTERNAL
ALIGNMENT TYPESELF-ALIGNING
LUBRICATION MATERIALGREASE
SELF-ALIGNMENT ANGLE10.00 DEGREES NOMINAL
INNER RING WIDTH0.5000 INCHES NOMINAL IN
SHANK THREAD LENGTH1.0620 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
SJ8447Interchangeable
interchangeable cross-reference
interchangeable
10108498-2Interchangeable
interchangeable cross-reference
interchangeable
HJ405228Interchangeable
interchangeable cross-reference
interchangeable
CK949Interchangeable
interchangeable cross-reference
interchangeable
05-900400Interchangeable
interchangeable cross-reference
interchangeable
TM47Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MR4-0MILG3278A?
MR4-0MILG3278A is a BEARING,ROLLER,ROD END.
What parts can replace MR4-0MILG3278A?
There are 7 known substitutes for MR4-0MILG3278A: SJ8447, 10108498-2, HJ405228 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MR4-0MILG3278A?
MR4-0MILG3278A is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-3295. This indicates validated use in U.S. government and defense supply chains.
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