PartsTable
Technical Data Sheet
PartsTable / MRO / 1-110378
1-110378 ✓ 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 material: PLASTIC CASE, body_style: W/O MTG FACILITIES, AXIAL TERMINALS, bore_shape: STRAIGHT, body_length: 1.250 INCHES NOMINAL IN, body_diameter: 0.438 INCHES NOMINAL IN, bore_diameter: 40.00 MILLIMETERS NOMINAL MM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-4712, 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→ 1-110378
NSN: 3110-00-156-4712
FSC: 3110
CAGE: 79500 — WESTINGHOUSE ELECTRIC CORP (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
bore_shapeSTRAIGHT
body_length1.250 INCHES NOMINAL IN
body_diameter0.438 INCHES NOMINAL IN
bore_diameter40.00 MILLIMETERS NOMINAL MM
overall_width1.1875 INCHES NOMINAL IN
load_directionANGULAR
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
lubrication_materialOIL LUBRICATING
reliability_indicatorNOT ESTABLISHED
NSN3110-00-156-4712
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1-110378 · 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: 80.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
•
INTERNAL FIT-UP CONTACT ANGULAR DIRECTION: OUTWARD CONVERGENT
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
SURFACE FINISH: GROUND
•
LOAD DIRECTION: ANGULAR
•
LUBRICATION MATERIAL: OIL LUBRICATING
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)
OVERALL WIDTH1.1875 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER80.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
INTERNAL FIT-UP CONTACT ANGULAR DIRECTIONOUTWARD CONVERGENT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SURFACE FINISHGROUND
LOAD DIRECTIONANGULAR
LUBRICATION MATERIALOIL LUBRICATING
INTERNAL FIT-UP DESIGNATIONSTANDARD
NONDEFINITIVE SPEC/STD DATA00 GRADE AND 143 TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
162691Interchangeable
interchangeable cross-reference
interchangeable
127-066-0002Interchangeable
interchangeable cross-reference
interchangeable
3591-114Interchangeable
interchangeable cross-reference
interchangeable
13934Interchangeable
interchangeable cross-reference
interchangeable
5308Interchangeable
interchangeable cross-reference
interchangeable
BRFF1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1-110378?
1-110378 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1-110378?
There are 26 known substitutes for 1-110378: 162691, 127-066-0002, 3591-114 and 23 more. Substitute compatibility should be verified for your specific system.
Is 1-110378 still available?
1-110378 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