PartsTable
Technical Data Sheet
PartsTable / MRO / 302-20
302-20 ✓ 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,MICA DIELECTRIC. Key specifications include color: CLEAR, width: 3.000 INCHES NOMINAL IN, length: 5.0 FEET NOMINAL FT, material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, bore_shape: STRAIGHT, design_type: NONREUSABLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-8243, 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→ 302-20
NSN: 3110-00-156-8243
FSC: 3110
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
colorCLEAR
width3.000 INCHES NOMINAL IN
length5.0 FEET NOMINAL FT
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
bore_shapeSTRAIGHT
design_typeNONREUSABLE
switch_typePUSH-PULL
corner_shapeSQUARE ALL CORNERS
thread_class3A SINGLE THREADED PORTION A
body_diameter3.000 INCHES NOMINAL IN
bore_diameter100.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MINIMUM
NSN3110-00-156-8243
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 302-20 · 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
•
BORE SHAPE: STRAIGHT
•
SURFACE FINISH: GROUND
•
MATERIAL: STEEL OUTER RING
•
STYLE DESIGNATOR: COUNTERBORED OUTER RING, NON-SEPARABLE
•
LOAD DIRECTION: ANGULAR
•
OVERALL OUTSIDE DIAMETER: 180.00 MILLIMETERS NOMINAL MM
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)
BORE SHAPESTRAIGHT
SURFACE FINISHGROUND
MATERIALSTEEL OUTER RING
STYLE DESIGNATORCOUNTERBORED OUTER RING, NON-SEPARABLE
MATERIALSTEEL BALL
MATERIALSTEEL INNER RING
LOAD DIRECTIONANGULAR
OVERALL OUTSIDE DIAMETER180.00 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE DIAMETER100.00 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
150-570GPC220Interchangeable
interchangeable cross-reference
interchangeable
150-570PC220Interchangeable
interchangeable cross-reference
interchangeable
150-589 PIECE 220Interchangeable
interchangeable cross-reference
interchangeable
30220Interchangeable
interchangeable cross-reference
interchangeable
NECKInterchangeable
interchangeable cross-reference
interchangeable
539-040-005-600Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 302-20?
302-20 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 302-20?
There are 16 known substitutes for 302-20: 150-570GPC220, 150-570PC220, 150-589 PIECE 220 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 302-20?
302-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-8243. 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