PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 11387A
11387A ✓ 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 material: STEEL OVERALL, cone_width: 0.4391 INCHES NOMINAL IN, bore_diameter: 0.7500 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.0400 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 2. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3685, 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
11387A
NSN: 3110-00-100-3685
FSC: 3110
CAGE: 28265 — HERCULES ENGINE CO INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width0.4391 INCHES NOMINAL IN
bore_diameter0.7500 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.0400 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-3685
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 11387A · 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
•
BORE DIAMETER: 0.7500 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
STYLE DESIGNATOR: NORMAL ANGLE
•
MATERIAL: STEEL OVERALL
•
CONE CORNER RADIUS: 0.0400 INCHES NOMINAL IN
•
CONE WIDTH: 0.4391 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)
BORE DIAMETER0.7500 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
STYLE DESIGNATORNORMAL ANGLE
MATERIALSTEEL OVERALL
CONE CORNER RADIUS0.0400 INCHES NOMINAL IN
CONE WIDTH0.4391 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
33154Interchangeable
interchangeable cross-reference
interchangeable
9060Interchangeable
interchangeable cross-reference
interchangeable
50012Interchangeable
interchangeable cross-reference
interchangeable
ASME B16.3Interchangeable
interchangeable cross-reference
interchangeable
613Interchangeable
interchangeable cross-reference
interchangeable
144113Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11387A?
11387A is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 11387A?
There are 25 known substitutes for 11387A: 33154, 9060, 50012 and 22 more. Substitute compatibility should be verified for your specific system.
Is 11387A still available?
11387A 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