PartsTable
Technical Data Sheet
PartsTable / MRO / 3877
3877 ✓ 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: STEEL OVERALL, body_style: W/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE, body_width: 1.000 INCHES NOMINAL IN, cone_width: 1.1875 INCHES NOMINAL IN, body_height: 1.000 INCHES NOMINAL IN, body_length: 1.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3108, 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→ 3877
NSN: 3110-00-100-3108
FSC: 3110
CAGE: 63734 — KAITLIN CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_styleW/MTG TABS/FLANGES, TERMINAL(S) ON ONE SURFACE
body_width1.000 INCHES NOMINAL IN
cone_width1.1875 INCHES NOMINAL IN
body_height1.000 INCHES NOMINAL IN
body_length1.750 INCHES NOMINAL IN
bore_diameter1.6250 INCHES NOMINAL IN
section_quantity2
style_designatorNORMAL ANGLE
features_providedHERMETICALLY SEALED CASE
cone_corner_radius0.1406 INCHES NOMINAL IN
reliability_indicatorNOT ESTABLISHED
NSN3110-00-100-3108
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 3877 · 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
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
CONE WIDTH: 1.1875 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
BORE DIAMETER: 1.6250 INCHES NOMINAL IN
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)
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
CONE WIDTH1.1875 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
BORE DIAMETER1.6250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
44966Interchangeable
interchangeable cross-reference
interchangeable
SMD2015992Interchangeable
interchangeable cross-reference
interchangeable
80724Interchangeable
interchangeable cross-reference
interchangeable
31194Interchangeable
interchangeable cross-reference
interchangeable
14194Interchangeable
interchangeable cross-reference
interchangeable
17854Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3877?
3877 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 3877?
There are 26 known substitutes for 3877: 44966, SMD2015992, 80724 and 23 more. Substitute compatibility should be verified for your specific system.
Is 3877 still available?
3877 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