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PartsTable / COMPONENT / 74220MILG3278A
74220MILG3278A ✓ 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,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 0.3745 INCHES MINIMUM AND 0.9870 INCHES MAXIMUM IN, alignment_type: RIGID, surface_finish: GROUND, inner_ring_width: 0.8070 INCHES MINIMUM IN, outer_ring_width: 0.6840 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-159-9535, 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
74220MILG3278A
NSN: 3110-00-159-9535
FSC: 3110
CAGE: 51600 — REGAL BELOIT AMERICA, INC. DBA ROLLWAY BEARING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter0.3745 INCHES MINIMUM AND 0.9870 INCHES MAXIMUM IN
alignment_typeRIGID
surface_finishGROUND
inner_ring_width0.8070 INCHES MINIMUM IN
outer_ring_width0.6840 INCHES NOMINAL IN
special_featuresSPHERICAL OD,OD AND FACES OF OUTER RING CHROM PLATED
style_designatorAIRFRAME, HARDENED AND GROUND, NON-SEPARABLE
surface_treatmentCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
lubrication_materialGREASE
overall_outside_diameter0.9830 INCHES MINIMUM AND 0.9870 INCHES MAXIMUM IN
retainer_fabrication_methodPRESSED
NSN3110-00-159-9535
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 74220MILG3278A · 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
•
BORE DIAMETER: 0.3745 INCHES MINIMUM AND 0.9870 INCHES MAXIMUM IN
•
LUBRICATION MATERIAL: GREASE
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
•
SURFACE FINISH: GROUND
•
RETAINER FABRICATION METHOD: PRESSED
•
ALIGNMENT TYPE: RIGID
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER0.3745 INCHES MINIMUM AND 0.9870 INCHES MAXIMUM IN
LUBRICATION MATERIALGREASE
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
SURFACE FINISHGROUND
RETAINER FABRICATION METHODPRESSED
ALIGNMENT TYPERIGID
LUBRICATION MATERIALGREASE
SPECIAL FEATURESSPHERICAL OD,OD AND FACES OF OUTER RING CHROM PLATED
OUTER RING WIDTH0.6840 INCHES NOMINAL IN
INNER RING WIDTH0.8070 INCHES MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
74220Interchangeable
interchangeable cross-reference
interchangeable
372-0025-020Interchangeable
interchangeable cross-reference
interchangeable
2-5035Interchangeable
interchangeable cross-reference
interchangeable
7-4226Interchangeable
interchangeable cross-reference
interchangeable
RBC74220Interchangeable
Same NIIN cross-reference
interchangeable
1SE5670Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 74220MILG3278A?
74220MILG3278A is a BEARING,ROLLER,NEEDLE.
What parts can replace 74220MILG3278A?
There are 10 known substitutes for 74220MILG3278A: 74220, 372-0025-020, 2-5035 and 7 more. Substitute compatibility should be verified for your specific system.
Is 74220MILG3278A still available?
74220MILG3278A 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