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40991-00 — CAPACITOR,FIXED,CERAMIC DIELECTR

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

40991-00: CAPACITOR,FIXED,CERAMIC DIELECTR.

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include bearings: INCLUDED, material: PLASTIC RIM, bore_type: STRAIGHT, face_width: 0.344 INCHES NOMINAL IN, bore_length: 0.344 INCHES NOMINAL IN, design_form: PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-125-1002, 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
40991-00
NSN: 3020-00-125-1002
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 77294 — PIPER INDUSTRIAL MANUFACTURING COMPANY, LLC DIV PIPER INDUSTRIAL MANUFACTURING COMPANY (USA)
SPECIFICATIONS
bearingsINCLUDED
materialPLASTIC RIM
bore_typeSTRAIGHT
face_width0.344 INCHES NOMINAL IN
bore_length0.344 INCHES NOMINAL IN
design_formPLAIN
bearing_typeBUSHING
bore_featureINCLUDED
groove_depth0.188 INCHES NOMINAL IN
groove_width0.219 INCHES NOMINAL IN
bore_diameter0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
groove_radius0.094 INCHES NOMINAL IN
NSN3020-00-125-1002
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,CERAMIC DIELECTR TITLE COMPONENT PN 40991-00 MFR CAPACITOR,FIXED,CERAMI
KEY FEATURES
•
INTEGRAL COOLING VANE: NOT INCLUDED
•
BORE FEATURE: INCLUDED
•
BEARING QUANTITY: 1
•
SPLIT HUB FEATURE: NOT INCLUDED
•
BORE LENGTH: 0.344 INCHES NOMINAL IN
•
DESIGN FORM: PLAIN
•
GROOVE RADIUS: 0.094 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 2.750 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
INTEGRAL COOLING VANENOT INCLUDED
BORE FEATUREINCLUDED
BEARING QUANTITY1
SPLIT HUB FEATURENOT INCLUDED
BORE LENGTH0.344 INCHES NOMINAL IN
DESIGN FORMPLAIN
GROOVE RADIUS0.094 INCHES NOMINAL IN
OUTSIDE DIAMETER2.750 INCHES NOMINAL IN
STYLE DESIGNATORPLAIN
GROOVE DEPTH0.188 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 40991-00?
40991-00 is a CAPACITOR,FIXED,CERAMIC DIELECTR.
What is the NSN for 40991-00?
40991-00 is cataloged in the U.S. Government catalog under NSN 3020-00-125-1002. 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.