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PartsTable / COMPONENT / 181858R1
181858R1 ✓ 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,FIXED,MICA DIELECTRIC. Key specifications include angle: 38.0 DEGREES, material: FIBER AND RUBBER BODY, nominal_width: 0.500 INCHES IN, performance_type: STANDARD CAPACITY, style_designator: COG OR NOTCHED, cross-sectional_size: SAE 1/2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3030-00-730-9123, 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
181858R1
NSN: 3030-00-730-9123
FSC: 3030
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
angle38.0 DEGREES
materialFIBER AND RUBBER BODY
nominal_width0.500 INCHES IN
performance_typeSTANDARD CAPACITY
style_designatorCOG OR NOTCHED
cross-sectional_sizeSAE 1/2
strengthening_featureFIBER CORD
nominal_effective_outside_length30.250 INCHES IN
NSN3030-00-730-9123
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN 181858R1 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
•
STRENGTHENING FEATURE: FIBER CORD
•
NOMINAL EFFECTIVE OUTSIDE LENGTH: 30.250 INCHES IN
•
ANGLE: 38.0 DEGREES
•
CROSS-SECTIONAL SIZE: SAE 1/2
•
PERFORMANCE TYPE: STANDARD CAPACITY
•
NOMINAL WIDTH: 0.500 INCHES IN
•
MATERIAL: FIBER AND RUBBER BODY
•
STYLE DESIGNATOR: COG OR NOTCHED
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)
STRENGTHENING FEATUREFIBER CORD
NOMINAL EFFECTIVE OUTSIDE LENGTH30.250 INCHES IN
ANGLE38.0 DEGREES
CROSS-SECTIONAL SIZESAE 1/2
PERFORMANCE TYPESTANDARD CAPACITY
NOMINAL WIDTH0.500 INCHES IN
MATERIALFIBER AND RUBBER BODY
STYLE DESIGNATORCOG OR NOTCHED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
2406657Interchangeable
interchangeable cross-reference
interchangeable
17301Interchangeable
interchangeable cross-reference
interchangeable
MEG88026Interchangeable
interchangeable cross-reference
interchangeable
17300Interchangeable
interchangeable cross-reference
interchangeable
698988-000Interchangeable
interchangeable cross-reference
interchangeable
CM45B241JInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 181858R1?
181858R1 is a CAPACITOR,FIXED,MICA DIELECTRIC.
What parts can replace 181858R1?
There are 23 known substitutes for 181858R1: 2406657, 17301, MEG88026 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 181858R1?
181858R1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3030-00-730-9123. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026