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21539P11 — CAPACITOR,VARIABLE,AIR DIELECTRI

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

21539P11: CAPACITOR,VARIABLE,AIR DIELECTRI.

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include body_style: BUSHING MOUNTED, body_length: 1.000 INCHES NOMINAL IN, thread_class: 2A A, body_diameter: 0.688 INCHES NOMINAL IN, bushing_length: 0.250 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-855-5470, 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→ 21539P11
NSN: 5930-00-855-5470
FSC: 5930 — Switches
CAGE: 27618 — TAYLOR MACHINE WORKS INC (USA)
SPECIFICATIONS
body_styleBUSHING MOUNTED
body_length1.000 INCHES NOMINAL IN
thread_class2A A
body_diameter0.688 INCHES NOMINAL IN
bushing_length0.250 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
actuator_height0.125 INCHES NOMINAL IN
mounting_methodTHREADED BUSHING
actuator_diameter0.375 INCHES NOMINAL IN
nominal_thread_size0.500 INCHES IN
switch_actuator_quantity1
thread_series_designatorUNF
NSN5930-00-855-5470
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN 21539P11 MFR CAPACITOR,VARIABLE,AIR
KEY FEATURES
•
BUSHING LENGTH: 0.250 INCHES NOMINAL IN
•
BODY DIAMETER: 0.688 INCHES NOMINAL IN
•
ACTUATOR DIAMETER: 0.375 INCHES NOMINAL IN
•
INCLOSURE TYPE: FULLY INCLOSED
•
BODY STYLE: BUSHING MOUNTED
•
MOUNTING METHOD: THREADED BUSHING
•
SWITCH ACTUATOR QUANTITY: 1
•
NOMINAL THREAD SIZE: 0.500 INCHES 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
BUSHING LENGTH0.250 INCHES NOMINAL IN
BODY DIAMETER0.688 INCHES NOMINAL IN
ACTUATOR DIAMETER0.375 INCHES NOMINAL IN
INCLOSURE TYPEFULLY INCLOSED
BODY STYLEBUSHING MOUNTED
MOUNTING METHODTHREADED BUSHING
SWITCH ACTUATOR QUANTITY1
NOMINAL THREAD SIZE0.500 INCHES IN
BODY LENGTH1.000 INCHES NOMINAL IN
COLORSILVER SINGLE ACTUATOR
OTHER ITEMS IN FSC 5930 — Switches
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5930-00-000-0117 5930-00-001-1407 5930-00-001-1890 5930-00-001-2571 5930-00-001-2575 5930-00-001-2580 5930-00-001-2608 5930-00-001-2609
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 21539P11?
21539P11 is a CAPACITOR,VARIABLE,AIR DIELECTRI. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 21539P11?
21539P11 is cataloged in the U.S. Government catalog under NSN 5930-00-855-5470. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.