PartsTable
Technical Data Sheet
89021 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The CAPACITOR,FIXED,ELECTROLYTIC is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include material: PLASTIC, body_style: W/O MTG FACILITIES, TERMINAL(S) ON ONE END, bore_shape: STRAIGHT, body_length: 45.5 MILLIMETERS MAXIMUM MM, shank_length: 1.000 INCHES NOMINAL IN, thread_class: 2A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-133-3805, 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 89021
NSN: 5306-00-133-3805
FSC: 5306
CAGE: 08292 — EASCO HAND TOOLS INC DBA DANAHER TOOL GROUP DIV DANAHER TOOL GROUP EASCO HAND TOOLS INC. (USA)
SPECIFICATIONS
materialPLASTIC
body_styleW/O MTG FACILITIES, TERMINAL(S) ON ONE END
bore_shapeSTRAIGHT
body_length45.5 MILLIMETERS MAXIMUM MM
shank_length1.000 INCHES NOMINAL IN
thread_class2A A
body_diameter13.0 MILLIMETERS MAXIMUM MM
bore_diameter4.00 MILLIMETERS NOMINAL MM
overall_width5.0 MILLIMETERS NOMINAL MM
thread_length0.781 INCHES MAXIMUM IN
load_directionRADIAL
overall_length2.406 INCHES NOMINAL IN
NSN5306-00-133-3805
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 89021 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
EYE OUTSIDE WIDTH: 1.188 INCHES NOMINAL IN
THREAD LENGTH: 0.781 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
THREAD DIRECTION: RIGHT-HAND
EYE STOCK DIAMETER: 0.219 INCHES NOMINAL IN
STYLE DESIGNATOR: ROUND, CLOSED W/SHOULDER
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)
EYE OUTSIDE WIDTH1.188 INCHES NOMINAL IN
OVERALL LENGTH2.406 INCHES NOMINAL IN
THREAD LENGTH0.781 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD DIRECTIONRIGHT-HAND
EYE STOCK DIAMETER0.219 INCHES NOMINAL IN
STYLE DESIGNATORROUND, CLOSED W/SHOULDER
MATERIALSTEEL OVERALL
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
R4Interchangeable
interchangeable cross-reference
interchangeable
C94Interchangeable
interchangeable cross-reference
interchangeable
R4JInterchangeable
interchangeable cross-reference
interchangeable
EB21Interchangeable
interchangeable cross-reference
interchangeable
EB21/EXT AL6063 -T5,144INLGInterchangeable
interchangeable cross-reference
interchangeable
89021Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 89021?
89021 is a CAPACITOR,FIXED,ELECTROLYTIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 89021?
There are 8 known substitutes for 89021: R4, C94, R4J and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 89021?
89021 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5306-00-133-3805. This indicates validated use in U.S. government and defense supply chains.
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