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MS19081-277 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

MS19081-277: BEARING,ROLLER,TAPERED.

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 RETAINER, cup_width: 1.6250 INCHES NOMINAL IN, cone_width: 2.2190 INCHES NOMINAL IN, bore_diameter: 3.3750 INCHES NOMINAL IN, overall_width: 2.1250 INCHES NOMINAL IN, standout_width: 0.5000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-100-4429, 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
MS19081-277
NSN: 3110-00-100-4429
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL RETAINER
cup_width1.6250 INCHES NOMINAL IN
cone_width2.2190 INCHES NOMINAL IN
bore_diameter3.3750 INCHES NOMINAL IN
overall_width2.1250 INCHES NOMINAL IN
standout_width0.5000 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.1300 INCHES NOMINAL IN
overall_outside_diameter6.6250 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 4
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE CUP
NSN3110-00-100-4429
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MS19081-277 · 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
•
CUP WIDTH: 1.6250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE CUP
•
OVERALL OUTSIDE DIAMETER: 6.6250 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1300 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
CUP WIDTH1.6250 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE CUP
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE ROLLER
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE CONE
OVERALL WIDTH2.1250 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER6.6250 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1300 INCHES NOMINAL IN
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
STANDOUT WIDTH0.5000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 4
841-832Reference document
Same NSN cross-reference
Reference document — Secondary reference
FF-B-187AReference document
Same NSN cross-reference
Reference document — Secondary reference
BT841BT832Reference document
Same NSN cross-reference
Reference document — Secondary reference
FF-B-187Reference document
Same NSN cross-reference
Reference document — Identification reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS19081-277?
MS19081-277 is a BEARING,ROLLER,TAPERED.
What parts can replace MS19081-277?
There are 4 known substitutes for MS19081-277: 841-832, FF-B-187A, BT841BT832 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS19081-277?
MS19081-277 is cataloged in the U.S. Government catalog under NSN 3110-00-100-4429. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.