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Technical Data Sheet
PartsTable / COMPONENT / 313-120 REF.5A1
313-120 REF.5A1 ✓ 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 313-120 REF.5A1 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-198-1757, 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
313-120 REF.5A1
NSN: 3110-00-198-1757
FSC: 3110
CAGE: 21444 — REXNORD INDUSTRIES LLC (USA)
SPECIFICATIONS
Part Number313-120 REF.5A1
NSN3110-00-198-1757
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 313-120 REF.5A1 · 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
•
CONE WIDTH: 1.1875 INCHES NOMINAL IN
•
BORE DIAMETER: 2.6250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
MATERIAL: STEEL OVERALL
•
OVERALL OUTSIDE DIAMETER: 4.4375 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1300 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 4
TECHNICAL CHARACTERISTICS (FLIS)
CONE WIDTH1.1875 INCHES NOMINAL IN
BORE DIAMETER2.6250 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
MATERIALSTEEL OVERALL
OVERALL OUTSIDE DIAMETER4.4375 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1300 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 4
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
STANDOUT WIDTH0.2500 INCHES NOMINAL IN
RETAINER FABRICATION METHODPRESSED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
3K3036Interchangeable
interchangeable cross-reference
interchangeable
FF-B-187/01-493Interchangeable
interchangeable cross-reference
interchangeable
9-049-103801Interchangeable
interchangeable cross-reference
interchangeable
39500Interchangeable
interchangeable cross-reference
interchangeable
36017Interchangeable
interchangeable cross-reference
interchangeable
MR1905EX5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 313-120 REF.5A1?
313-120 REF.5A1 is a 313-120 REF.5A1.
What parts can replace 313-120 REF.5A1?
There are 14 known substitutes for 313-120 REF.5A1: 3K3036, FF-B-187/01-493, 9-049-103801 and 11 more. Substitute compatibility should be verified for your specific system.
Is 313-120 REF.5A1 still available?
313-120 REF.5A1 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