PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 749A
749A ✓ 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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include height: 2.688 INCHES NOMINAL IN, material: STEEL OVERALL, grease_capacity: 0.500 OUNCES OZ, special_features: CAP HAS WING FOR TURNING, style_designator: STRAIGHT, CAP FEED, W/BALL CHECK, nominal_thread_size: 0.125 INCHES IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0684, 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
749A
NSN: 3110-00-100-0684
FSC: 3110
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
height2.688 INCHES NOMINAL IN
materialSTEEL OVERALL
grease_capacity0.500 OUNCES OZ
special_featuresCAP HAS WING FOR TURNING
style_designatorSTRAIGHT, CAP FEED, W/BALL CHECK
nominal_thread_size0.125 INCHES IN
thread_quantity_per_inch27
assembly_clearance_radius0.531 INCHES NOMINAL IN
screw_thread_series_designatorNPT
NSN3110-00-100-0684
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 749A · 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: 1.8375 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
BORE DIAMETER: 3.2500 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
CONE WIDTH1.8375 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
STYLE DESIGNATORNORMAL ANGLE
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
BORE DIAMETER3.2500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
28562Interchangeable
interchangeable cross-reference
interchangeable
173066H1Interchangeable
interchangeable cross-reference
interchangeable
19837Interchangeable
interchangeable cross-reference
interchangeable
749AInterchangeable
interchangeable cross-reference
interchangeable
4873-5Interchangeable
interchangeable cross-reference
interchangeable
17306-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 749A?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 749A?
749A is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 749A?
There are 11 known substitutes for 749A: 28562, 173066H1, 19837 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 749A?
749A is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0684. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 749A

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026