PartsTable
Technical Data Sheet
PartsTable / MRO / X444
X444 ✓ 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,METALLIZED,PAPER. Key specifications include length: 96.000 INCHES NOMINAL IN, material: PLASTIC CASE, body_style: W/O MTG FACILITIES, AXIAL TERMINALS, time_delay: 0.0100 SECONDS NOMINAL FIXED OPERATE TIME, body_length: 1.000 INCHES MAXIMUM IN, body_diameter: 0.361 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-144-8519, 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→ X444
NSN: 3110-00-144-8519
FSC: 3110
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
length96.000 INCHES NOMINAL IN
materialPLASTIC CASE
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
time_delay0.0100 SECONDS NOMINAL FIXED OPERATE TIME
body_length1.000 INCHES MAXIMUM IN
body_diameter0.361 INCHES MAXIMUM IN
coil_quantity1
overall_width0.375 INCHES NOMINAL IN
overall_height0.375 INCHES NOMINAL IN
overall_length1.750 INCHES NOMINAL IN
terminal_length2.500 INCHES NOMINAL IN
winding_quantity1
NSN3110-00-144-8519
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: X444 · 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
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
1813-9Interchangeable
interchangeable cross-reference
interchangeable
10571-001Interchangeable
interchangeable cross-reference
interchangeable
PKX3607Interchangeable
interchangeable cross-reference
interchangeable
501031Interchangeable
interchangeable cross-reference
interchangeable
589929Interchangeable
interchangeable cross-reference
interchangeable
X440Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is X444?
X444 is a CAPACITOR,FIXED,METALLIZED,PAPER. It is classified as a MRO (MRO_GENERAL).
What parts can replace X444?
There are 31 known substitutes for X444: 1813-9, 10571-001, PKX3607 and 28 more. Substitute compatibility should be verified for your specific system.
Is X444 still available?
X444 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