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Technical Data Sheet
PartsTable / MRO / A387
A387 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

CAPACITOR,FIXED,PAPER DIELECTRIC. Key specifications include phase: THREE INPUT, material: COPPER ALLOY 360 AND COPPER ALLOY, seat_angle: 45.0 DEGREES ALL ENDS, power_rating: 25.000 HORSEPOWER OUTPUT, thread_class: 2B, cooling_method: FAN COOLED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-6208, 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
MRO→ MRO_GENERAL→ A387
NSN: 3110-00-100-6208
FSC: 3110
CAGE: 11599 — TRIUMPH ENGINE CONTROL SYSTEMS LLC (USA)
SPECIFICATIONS
phaseTHREE INPUT
materialCOPPER ALLOY 360 AND COPPER ALLOY
seat_angle45.0 DEGREES ALL ENDS
power_rating25.000 HORSEPOWER OUTPUT
thread_class2B
cooling_methodFAN COOLED
overall_length0.880 INCHES NOMINAL IN
connection_typeTHREADED INTERNAL TUBE ALL ENDS
mounting_methodTHREADED HOLE(S)
connection_styleFLARED (TUBE) ALL ENDS
overall_diameter0.750 INCHES NOMINAL IN
special_featuresMEETS OR EXCEEDS NEMA MG1 LATEST REVISION FOR ENERGY EFFICIENT GENERAL PURPOSE DUTY
NSN3110-00-100-6208
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A387 · 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
•
ROLLING ELEMENT DIAMETER: 0.1250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESHARDNESS RATING ROCKWELL C MIN 50.0 AND MAX 58.0
ROLLING ELEMENT DIAMETER0.1250 INCHES NOMINAL IN
STYLE DESIGNATORBALL
MATERIALSTEEL CORROSION RESISTING OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
474403PG925PC24Interchangeable
interchangeable cross-reference
interchangeable
145625Interchangeable
interchangeable cross-reference
interchangeable
733492Interchangeable
interchangeable cross-reference
interchangeable
96-15903Interchangeable
interchangeable cross-reference
interchangeable
81-41Interchangeable
interchangeable cross-reference
interchangeable
53435Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A387?
A387 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace A387?
There are 25 known substitutes for A387: 474403PG925PC24, 145625, 733492 and 22 more. Substitute compatibility should be verified for your specific system.
Is A387 still available?
A387 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