PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 5303311
5303311 ✓ 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

MOUNTING BASE,ELECTRICAL EQUIPME. Key specifications include bore_diameter: 0.3750 INCHES NOMINAL IN, alignment_type: RIGID, overall_outside_diameter: 0.6250 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-120-3169, 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
5303311
NSN: 3110-00-120-3169
FSC: 3110
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
bore_diameter0.3750 INCHES NOMINAL IN
alignment_typeRIGID
overall_outside_diameter0.6250 INCHES NOMINAL IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-120-3169
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 5303311 · 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
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
OVERALL OUTSIDE DIAMETER: 0.6250 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
•
BORE DIAMETER: 0.3750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
OVERALL OUTSIDE DIAMETER0.6250 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
BORE DIAMETER0.3750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
BH68XInterchangeable
interchangeable cross-reference
interchangeable
74555AInterchangeable
interchangeable cross-reference
interchangeable
148476Interchangeable
interchangeable cross-reference
interchangeable
BH-68-OHInterchangeable
interchangeable cross-reference
interchangeable
148457Interchangeable
interchangeable cross-reference
interchangeable
1550-131Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5303311?
5303311 is a MOUNTING BASE,ELECTRICAL EQUIPME.
What parts can replace 5303311?
There are 19 known substitutes for 5303311: BH68X, 74555A, 148476 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5303311?
5303311 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-120-3169. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026