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20556 — CAPACITOR,VARIABLE,AIR DIELECTRI

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

20556: CAPACITOR,VARIABLE,AIR DIELECTRI.

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include material: STEEL OVERALL, body_width: 3.750 INCHES NOMINAL IN, body_height: 4.875 INCHES NOMINAL IN, body_length: 3.750 INCHES NOMINAL IN, inclosure_type: PARTIALLY INCLOSED, DOUBLE SHELL, overall_length: 1.710 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5950-00-647-5829, 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
20556
NSN: 5950-00-647-5829
NIINs: 006475829, 008872307, 012295499, 012735951, 013801346, 014308118
FSC: 5950 — Coils and Transformers
CAGE: 88204 — GTE PRODUCTS CORP SYLVANIA MINIATURE LIGHTING DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_width3.750 INCHES NOMINAL IN
body_height4.875 INCHES NOMINAL IN
body_length3.750 INCHES NOMINAL IN
inclosure_typePARTIALLY INCLOSED, DOUBLE SHELL
overall_length1.710 INCHES NOMINAL IN
drive_end_shapeSQUARE SINGLE END INTERNAL
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating60.0 HERTZ NOMINAL SINGLE COMPONENT
special_featuresDIMENSIONS ARE AS FOLLOWS: HEIGHT IS 2.058 IN., WIDTH IS 1.940 IN. IN
style_designatorOPEN END
surface_treatmentCHROMIUM OVERALL
NSN5950-00-647-5829
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN 20556 MFR CAPACITOR,VARIABLE,AIR
KEY FEATURES
•
MOUNTING FACILITY QUANTITY: 4 SINGLE GROUP
•
INCLOSURE TYPE: PARTIALLY INCLOSED, DOUBLE SHELL
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
INPUT-OUTPUT PHASE RELATIONSHIP: SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
•
MOUNTING METHOD: THREADED STUD(S) SINGLE GROUP
•
BODY WIDTH: 3.750 INCHES NOMINAL IN
•
BODY HEIGHT: 4.875 INCHES NOMINAL IN
•
WINDING FUNCTION AND QUANTITY: 1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
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
MOUNTING FACILITY QUANTITY4 SINGLE GROUP
INCLOSURE TYPEPARTIALLY INCLOSED, DOUBLE SHELL
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH2.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
INPUT-OUTPUT PHASE RELATIONSHIPSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
MOUNTING METHODTHREADED STUD(S) SINGLE GROUP
BODY WIDTH3.750 INCHES NOMINAL IN
BODY HEIGHT4.875 INCHES NOMINAL IN
WINDING FUNCTION AND QUANTITY1 PRIMARY AND 4 SECONDARY SINGLE COMPONENT
WINDING SHIELDING METHODINTERNAL SHIELD GROUNDED TO INCLOSURE AND CORE SINGLE COMPONENT
NOMINAL THREAD SIZE0.190 INCHES SINGLE GROUP IN
SUBSTITUTES & CROSS-REFERENCES 2
292-1651G1ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
55-81175Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 20556?
20556 is a CAPACITOR,VARIABLE,AIR DIELECTRI.
What parts can replace 20556?
There are 2 known substitutes for 20556: 292-1651G1A, 55-81175. Substitute compatibility should be verified for your specific system.
What is the NSN for 20556?
20556 is cataloged in the U.S. Government catalog under NSN 5950-00-647-5829. This indicates validated use in U.S. government and defense supply chains.
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