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Technical Data Sheet
PartsTable / COMPONENT / MS19081
MS19081 ✓ 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,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, cup_width: 0.9063 INCHES NOMINAL IN, cone_width: 1.1250 INCHES NOMINAL IN, bore_diameter: 1.5000 INCHES NOMINAL IN, overall_width: 1.1563 INCHES NOMINAL IN, standout_width: 0.2500 INCHES NOMINAL 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 3110-00-100-3888, 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
MS19081
NSN: 3110-00-100-3888
FSC: 3110
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
cup_width0.9063 INCHES NOMINAL IN
cone_width1.1250 INCHES NOMINAL IN
bore_diameter1.5000 INCHES NOMINAL IN
overall_width1.1563 INCHES NOMINAL IN
standout_width0.2500 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.0300 INCHES NOMINAL IN
backface_corner_radius0.1300 INCHES NOMINAL IN
overall_outside_diameter3.2500 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA CLASS 4
NSN3110-00-100-3888
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MS19081 · 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
•
OVERALL OUTSIDE DIAMETER: 3.8750 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0310 INCHES NOMINAL IN
•
BORE DIAMETER: 2.2500 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.0930 INCHES NOMINAL IN
•
CONE WIDTH: 0.8640 INCHES NOMINAL IN
•
STANDOUT WIDTH: 0.1250 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
CUP WIDTH: 0.7018 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)
OVERALL OUTSIDE DIAMETER3.8750 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0310 INCHES NOMINAL IN
BORE DIAMETER2.2500 INCHES NOMINAL IN
CONE CORNER RADIUS0.0930 INCHES NOMINAL IN
CONE WIDTH0.8640 INCHES NOMINAL IN
STANDOUT WIDTH0.1250 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
CUP WIDTH0.7018 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
OVERALL WIDTH0.8268 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
387-382Interchangeable
Same NIIN cross-reference
interchangeable
132-13397Interchangeable
Same NIIN cross-reference
interchangeable
MS19081-94Interchangeable
Same NIIN cross-reference
interchangeable
A-A-59649Interchangeable
Same NIIN cross-reference
interchangeable
3110001003888Interchangeable
Same NIIN cross-reference
interchangeable
AA59649-412Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS19081?
MS19081 is a BEARING,ROLLER,TAPERED.
What parts can replace MS19081?
There are 7 known substitutes for MS19081: 387-382, 132-13397, MS19081-94 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS19081?
MS19081 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3888. 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