PartsTable
Technical Data Sheet
PartsTable / COMPONENT / M-451-OH
M-451-OH ✓ 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: 0.2500 INCHES NOMINAL IN, overall_width: 0.3125 INCHES NOMINAL IN, alignment_type: RIGID, surface_finish: GROUND, special_features: OIL HOLE IN OUTER RING; EXTRA CAPACITY OUTER RING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-183-6719, 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
M-451-OH
NSN: 3110-00-183-6719
FSC: 3110
CAGE: 60380 — TIMKEN AEROSPACE, INC DBA TORRINGTON PRODUCT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter0.2500 INCHES NOMINAL IN
overall_width0.3125 INCHES NOMINAL IN
alignment_typeRIGID
surface_finishGROUND
special_featuresOIL HOLE IN OUTER RING; EXTRA CAPACITY OUTER RING
style_designatorNON-SEPARABLE, CLOSED END, DRAWN SHELL
overall_outside_diameter0.4375 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-183-6719
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M-451-OH · 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
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 0.4375 INCHES NOMINAL IN
•
RETAINER FABRICATION METHOD: PRESSED
•
STYLE DESIGNATOR: NON-SEPARABLE, CLOSED END, DRAWN SHELL
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
ALIGNMENT TYPE: RIGID
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER0.4375 INCHES NOMINAL IN
RETAINER FABRICATION METHODPRESSED
STYLE DESIGNATORNON-SEPARABLE, CLOSED END, DRAWN SHELL
SPECIAL FEATURESOIL HOLE IN OUTER RING; EXTRA CAPACITY OUTER RING
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
ALIGNMENT TYPERIGID
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
MATERIALSTEEL OVERALL
BORE DIAMETER0.2500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
5213Interchangeable
interchangeable cross-reference
interchangeable
J246Interchangeable
interchangeable cross-reference
interchangeable
AC294Interchangeable
interchangeable cross-reference
interchangeable
3071Interchangeable
interchangeable cross-reference
interchangeable
107887Interchangeable
interchangeable cross-reference
interchangeable
T-3071DInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M-451-OH?
M-451-OH is a BEARING,ROLLER,NEEDLE.
What parts can replace M-451-OH?
There are 18 known substitutes for M-451-OH: 5213, J246, AC294 and 15 more. Substitute compatibility should be verified for your specific system.
Is M-451-OH still available?
M-451-OH 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