PartsTable
Technical Data Sheet
Download PDF

C18420-3 — CAPACITOR,VARIABLE,AIR DIELECTRI

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

C18420-3: CAPACITOR,VARIABLE,AIR DIELECTRI.

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include contact_load_current_rating: 1.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL, contact_voltage_rating_in_volts: 150.0 AC AT SEA LEVEL. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-771-8372, 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
C18420-3
NSN: 5930-00-771-8372
FSC: 5930 — Switches
CAGE: 42498 — DAR ELECTRONICS INC DBA NATIONAL RADIO CO (USA)
SPECIFICATIONS
contact_load_current_rating1.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
contact_voltage_rating_in_volts150.0 AC AT SEA LEVEL
NSN5930-00-771-8372
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN C18420-3 MFR CAPACITOR,VARIABLE,AIR
KEY FEATURES
•
CONTACT LOAD CURRENT RATING: 1.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
•
CONTACT VOLTAGE RATING IN VOLTS: 150.0 AC AT SEA LEVEL
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
CONTACT LOAD CURRENT RATING1.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
CONTACT VOLTAGE RATING IN VOLTS150.0 AC AT SEA LEVEL
SUBSTITUTES & CROSS-REFERENCES 2
B4376-112Reference document
Same NSN cross-reference
Reference document — Secondary reference
SPEC 4197Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy C18420-3?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is C18420-3?
C18420-3 is a CAPACITOR,VARIABLE,AIR DIELECTRI.
What parts can replace C18420-3?
There are 2 known substitutes for C18420-3: B4376-112, SPEC 4197. Substitute compatibility should be verified for your specific system.
What is the NSN for C18420-3?
C18420-3 is cataloged in the U.S. Government catalog under NSN 5930-00-771-8372. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — C18420-3

✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.