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Technical Data Sheet
PartsTable / COMPONENT / D-20
D-20 ✓ 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

CAPACITOR,FIXED,PLASTIC DIELECTR. Key specifications include material: STEEL OVERALL, alignment_type: RIGID, overall_height: 0.8125 INCHES NOMINAL IN, surface_finish: GROUND, special_features: NOMINAL PIPE SIZE 2.00 INCHES; INCLUDES EPDM GASKET IN, style_designator: GROOVED RACE SURFACE, BANDED OD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-8533, 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
D-20
NSN: 3110-00-100-8533
FSC: 3110
CAGE: 03489 — ANDREWS BEARING CORP DIV OF MPB CORP SUB OF WHEELABRATOR-FRYE INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
alignment_typeRIGID
overall_height0.8125 INCHES NOMINAL IN
surface_finishGROUND
special_featuresNOMINAL PIPE SIZE 2.00 INCHES; INCLUDES EPDM GASKET IN
style_designatorGROOVED RACE SURFACE, BANDED OD
features_providedNONMAGNETIC AND NONSPARKING
large_end_diameter0.500 INCHES NOMINAL IN
largest_bore_diameter1.6875 INCHES NOMINAL IN
bore_smallest_diameter1.6875 INCHES NOMINAL IN
overall_outside_diameter2.9687 INCHES NOMINAL IN
nondefinitive_spec/std_data1 ITEM OR 1 CLASS OR 2 CLASS
NSN3110-00-100-8533
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: D-20 · 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
•
THRUST DIRECTIONAL CAPABILITY DESIGNATION: SINGLE
•
LARGEST BORE DIAMETER: 1.6875 INCHES NOMINAL IN
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: GROOVED RACE SURFACE, BANDED OD
•
OVERALL OUTSIDE DIAMETER: 2.9687 INCHES NOMINAL IN
•
BORE SMALLEST DIAMETER: 1.6875 INCHES NOMINAL IN
•
MATERIAL: STEEL 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)
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
LARGEST BORE DIAMETER1.6875 INCHES NOMINAL IN
SURFACE FINISHGROUND
STYLE DESIGNATORGROOVED RACE SURFACE, BANDED OD
OVERALL OUTSIDE DIAMETER2.9687 INCHES NOMINAL IN
SPECIAL FEATURESRETAINERLESS TYPE
BORE SMALLEST DIAMETER1.6875 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
ALIGNMENT TYPERIGID
STANDARD TOLERANCE DESIGNATIONABEC NO.1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
325057Interchangeable
interchangeable cross-reference
interchangeable
MF345Interchangeable
interchangeable cross-reference
interchangeable
MN110272Interchangeable
interchangeable cross-reference
interchangeable
00D735Interchangeable
interchangeable cross-reference
interchangeable
D-20Interchangeable
interchangeable cross-reference
interchangeable
E2/0Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D-20?
D-20 is a CAPACITOR,FIXED,PLASTIC DIELECTR.
What parts can replace D-20?
There are 20 known substitutes for D-20: 325057, MF345, MN110272 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D-20?
D-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-8533. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026