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PartsTable / COMPONENT / MIL-S-83731
MIL-S-83731 ✓ 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 body_style: BUSHING MOUNT, body_width: 0.535 INCHES MAXIMUM IN, body_height: 0.640 INCHES MAXIMUM IN, body_length: 0.575 INCHES MAXIMUM IN, thread_class: 2A A, actuator_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-005-3094, 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
MIL-S-83731
NSN: 5930-00-005-3094
FSC: 5930
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
body_styleBUSHING MOUNT
body_width0.535 INCHES MAXIMUM IN
body_height0.640 INCHES MAXIMUM IN
body_length0.575 INCHES MAXIMUM IN
thread_class2A A
actuator_styleROUND
bushing_length0.470 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
actuator_height0.660 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN
mounting_methodTHREADED BUSHING
actuator_diameter0.240 INCHES NOMINAL IN
nominal_thread_size0.469 INCHES IN
NSN5930-00-005-3094
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN MIL-S-83731 MFR CAPACITOR,FIXED,MICA D
KEY FEATURES
•
THREAD QUANTITY PER INCH: 32
•
MOUNTING METHOD: THREADED BUSHING
•
ACTUATOR HEIGHT: 0.660 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.469 INCHES IN
•
THREAD CLASS: 2A A
•
NONPILE-UP CONTACT ARRANGEMENT: 1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY, TWO POSITIONS MAINTAINED SINGLE SWITCH UNIT
•
TERMINAL TYPE AND QUANTITY: 3 TURRET
•
BODY STYLE: BUSHING MOUNT
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)
THREAD QUANTITY PER INCH32
MOUNTING METHODTHREADED BUSHING
ACTUATOR HEIGHT0.660 INCHES MINIMUM AND 0.720 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.469 INCHES IN
THREAD CLASS2A A
NONPILE-UP CONTACT ARRANGEMENT1 POLE, DOUBLE THROW, ONE POSITION MOMENTARY, TWO POSITIONS MAINTAINED SINGLE SWITCH UNIT
TERMINAL TYPE AND QUANTITY3 TURRET
BODY STYLEBUSHING MOUNT
TEST DATA DOCUMENT81349-MIL-DTL-83731 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
BODY LENGTH0.575 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
MIL-DTL-83731Interchangeable
Same NIIN cross-reference
interchangeable
MS27718-31Interchangeable
Same NIIN cross-reference
interchangeable
11TW1-5Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-S-83731?
MIL-S-83731 is a CAPACITOR,FIXED,MICA DIELECTRIC.
What parts can replace MIL-S-83731?
There are 3 known substitutes for MIL-S-83731: MIL-DTL-83731, MS27718-31, 11TW1-5. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-S-83731?
MIL-S-83731 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-005-3094. 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