PartsTable
Technical Data Sheet
PartsTable / MRO / 521022
521022 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

CAPACITOR,FIXED,MICA DIELECTRIC. Key specifications include material: PLASTIC CASE, body_style: W/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES, body_width: 0.250 INCHES NOMINAL IN, body_height: 0.800 INCHES NOMINAL IN, body_length: 0.800 INCHES NOMINAL IN, overall_width: 1.050 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5970-00-137-9342, 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→ 521022
NSN: 5970-00-137-9342
FSC: 5970
CAGE: 86928 — SEASTROM MANUFACTURING CO INC (USA)
SPECIFICATIONS
materialPLASTIC CASE
body_styleW/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES
body_width0.250 INCHES NOMINAL IN
body_height0.800 INCHES NOMINAL IN
body_length0.800 INCHES NOMINAL IN
overall_width1.050 INCHES NOMINAL IN
overall_height0.005 INCHES NOMINAL IN
overall_length1.570 INCHES NOMINAL IN
terminal_length1.120 INCHES MINIMUM IN
first_end_radius0.192 INCHES NOMINAL IN
style_designatorFLAT, DIAMOND
unable_to_decodeUNABLE TO DECODE
NSN5970-00-137-9342
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN 521022 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
•
STYLE DESIGNATOR: FLAT, DIAMOND
•
FIFTH HOLE SPACING: 0.215 INCHES NOMINAL IN
•
UNABLE TO DECODE: UNABLE TO DECODE
•
SECOND HOLE DIAMETER: 0.064 INCHES NOMINAL IN
•
FOURTH HOLE SPACING: 0.430 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)
OVERALL LENGTH1.570 INCHES NOMINAL IN
OVERALL WIDTH1.050 INCHES NOMINAL IN
STYLE DESIGNATORFLAT, DIAMOND
FIFTH HOLE SPACING0.215 INCHES NOMINAL IN
UNABLE TO DECODEUNABLE TO DECODE
SECOND HOLE DIAMETER0.064 INCHES NOMINAL IN
FOURTH HOLE SPACING0.430 INCHES NOMINAL IN
OVERALL HEIGHT0.005 INCHES NOMINAL IN
FIRST HOLE DIAMETER0.156 INCHES NOMINAL IN
FIRST END RADIUS0.192 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
1467LSTInterchangeable
interchangeable cross-reference
interchangeable
P3R139P8Interchangeable
interchangeable cross-reference
interchangeable
CM30D222JInterchangeable
interchangeable cross-reference
interchangeable
105011Interchangeable
interchangeable cross-reference
interchangeable
521022Interchangeable
interchangeable cross-reference
interchangeable
8500699-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 521022?
521022 is a CAPACITOR,FIXED,MICA DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 521022?
There are 6 known substitutes for 521022: 1467LST, P3R139P8, CM30D222J and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 521022?
521022 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5970-00-137-9342. 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