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PartsTable / COMPONENT / 185403R1
185403R1 ✓ Verified by PartsTable
— · COMPONENT
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,VARIABLE,AIR DIELECTRI. Key specifications include material: STEEL OVERALL, head_style: FLAT, stem_style: GROOVED, head_height: 0.1300 INCHES NOMINAL IN, neck_radius: 0.3750 INCHES NOMINAL IN, stem_length: 6.2240 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-674-0398, 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
185403R1
NSN: 2805-00-674-0398
FSC: 2805
CAGE: 89346 — NAVISTAR INTL CORP TRUCK BR OHIO PLANT (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT
stem_styleGROOVED
head_height0.1300 INCHES NOMINAL IN
neck_radius0.3750 INCHES NOMINAL IN
stem_length6.2240 INCHES NOMINAL IN
groove_width0.1400 INCHES NOMINAL IN
stem_diameter0.4345 INCHES NOMINAL IN
chamfer_length0.0310 INCHES NOMINAL IN
groove_diameter0.3580 INCHES NOMINAL IN
outside_diameter2.1562 INCHES NOMINAL IN
special_featuresW/MINI CONCAVE INDENTURE ON BOTTOM OF HEAD,0.750 IN. DIA; 0.078 IN. DEPTH IN
NSN2805-00-674-0398
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,VARIABLE,AIR DIELECTRI TITLE COMPONENT PN 185403R1 MFR CAPACITOR,VARIABLE,AIR
KEY FEATURES
•
DISTANCE FROM GROOVE TO STEM END: 0.2500 INCHES NOMINAL IN
•
HEAD STYLE: FLAT
•
STEM DIAMETER: 0.4345 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.1562 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
NECK RADIUS: 0.3750 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 15.0
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)
DISTANCE FROM GROOVE TO STEM END0.2500 INCHES NOMINAL IN
HEAD STYLEFLAT
STEM DIAMETER0.4345 INCHES NOMINAL IN
OUTSIDE DIAMETER2.1562 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SPECIAL FEATURESW/MINI CONCAVE INDENTURE ON BOTTOM OF HEAD,0.750 IN. DIA; 0.078 IN. DEPTH IN
NECK RADIUS0.3750 INCHES NOMINAL IN
SEAT ANGLE IN DEG15.0
CHAMFER ANGLE IN DEG45.0
CHAMFER LENGTH0.0310 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
1644Interchangeable
interchangeable cross-reference
interchangeable
9743-B-0632-37Interchangeable
interchangeable cross-reference
interchangeable
8254Interchangeable
interchangeable cross-reference
interchangeable
482241Interchangeable
interchangeable cross-reference
interchangeable
1644AInterchangeable
interchangeable cross-reference
interchangeable
405004-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 185403R1?
185403R1 is a CAPACITOR,VARIABLE,AIR DIELECTRI.
What parts can replace 185403R1?
There are 19 known substitutes for 185403R1: 1644, 9743-B-0632-37, 8254 and 16 more. Substitute compatibility should be verified for your specific system.
Is 185403R1 still available?
185403R1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026