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Technical Data Sheet
PartsTable / COMPONENT / A1308A
A1308A ✓ 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 bore_diameter: 0.3125 INCHES NOMINAL IN, overall_width: 0.3125 INCHES NOMINAL IN, alignment_type: RIGID, style_designator: NON-SEPARABLE, OPEN END, DRAWN SHELL, overall_outside_diameter: 0.5000 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-120-3078, 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
A1308A
NSN: 3110-00-120-3078
FSC: 3110
CAGE: 76446 — MONARCH GOVERNOR CO (USA)
SPECIFICATIONS
bore_diameter0.3125 INCHES NOMINAL IN
overall_width0.3125 INCHES NOMINAL IN
alignment_typeRIGID
style_designatorNON-SEPARABLE, OPEN END, DRAWN SHELL
overall_outside_diameter0.5000 INCHES NOMINAL IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-120-3078
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A1308A · 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
•
STYLE DESIGNATOR: NON-SEPARABLE, OPEN END, DRAWN SHELL
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
ALIGNMENT TYPE: RIGID
•
OVERALL OUTSIDE DIAMETER: 0.5000 INCHES NOMINAL IN
•
BORE DIAMETER: 0.3125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORNON-SEPARABLE, OPEN END, DRAWN SHELL
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
OVERALL WIDTH0.3125 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
OVERALL OUTSIDE DIAMETER0.5000 INCHES NOMINAL IN
BORE DIAMETER0.3125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
112314Interchangeable
interchangeable cross-reference
interchangeable
225-007Interchangeable
interchangeable cross-reference
interchangeable
B55Interchangeable
interchangeable cross-reference
interchangeable
ME153Interchangeable
interchangeable cross-reference
interchangeable
BP55Interchangeable
interchangeable cross-reference
interchangeable
1128SCAV600-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1308A?
A1308A is a BEARING,ROLLER,NEEDLE.
What parts can replace A1308A?
There are 17 known substitutes for A1308A: 112314, 225-007, B55 and 14 more. Substitute compatibility should be verified for your specific system.
Is A1308A still available?
A1308A 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