PartsTable
Technical Data Sheet
PartsTable / COMPONENT / MS19081-161
MS19081-161 ✓ 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 COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 CUP, cup_width: 1.5000 INCHES NOMINAL IN, cone_width: 1.8125 INCHES NOMINAL IN, bore_diameter: 5.0000 INCHES NOMINAL IN, overall_width: 1.8125 INCHES NOMINAL IN, standout_width: 0.3125 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 3110-00-158-8355, 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
MS19081-161
NSN: 3110-00-158-8355
FSC: 3110
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 CUP
cup_width1.5000 INCHES NOMINAL IN
cone_width1.8125 INCHES NOMINAL IN
bore_diameter5.0000 INCHES NOMINAL IN
overall_width1.8125 INCHES NOMINAL IN
standout_width0.3125 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.1250 INCHES NOMINAL IN
overall_outside_diameter7.7500 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
material_document_and_classificationQQ-S-624 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-624 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-624 FED SPEC 3RD MATERIAL RESPONSE OR 66 FED STD 4TH MATERIAL RESPONSE CONE
NSN3110-00-158-8355
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MS19081-161 · 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
•
BACKFACE CORNER RADIUS: 0.1250 INCHES NOMINAL IN
•
MATERIAL: STEEL RETAINER
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
OVERALL OUTSIDE DIAMETER: 7.7500 INCHES NOMINAL IN
•
STANDOUT WIDTH: 0.3125 INCHES NOMINAL IN
•
BORE DIAMETER: 5.0000 INCHES NOMINAL IN
•
CONE WIDTH: 1.8125 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)
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
MATERIALSTEEL RETAINER
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
OVERALL OUTSIDE DIAMETER7.7500 INCHES NOMINAL IN
STANDOUT WIDTH0.3125 INCHES NOMINAL IN
BORE DIAMETER5.0000 INCHES NOMINAL IN
MATERIALSTEEL COMP 4320 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E52100 CONE
CONE WIDTH1.8125 INCHES NOMINAL IN
OVERALL WIDTH1.8125 INCHES NOMINAL IN
CUP WIDTH1.5000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
A-A-59649BInterchangeable
interchangeable cross-reference
interchangeable
13889-13830Interchangeable
interchangeable cross-reference
interchangeable
11592012Interchangeable
interchangeable cross-reference
interchangeable
A-A-59649-546Interchangeable
interchangeable cross-reference
interchangeable
X18D16Interchangeable
interchangeable cross-reference
interchangeable
264903-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS19081-161?
MS19081-161 is a BEARING,ROLLER,TAPERED.
What parts can replace MS19081-161?
There are 20 known substitutes for MS19081-161: A-A-59649B, 13889-13830, 11592012 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS19081-161?
MS19081-161 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-158-8355. 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