PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 663999
663999 ✓ 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,PLASTIC DIELECTR. Key specifications include body_width: 1.766 INCHES MAXIMUM IN, body_height: 2.203 INCHES MAXIMUM IN, body_length: 2.078 INCHES MAXIMUM IN, inclosure_type: HERMETICALLY SEALED, mounting_method: THREADED STUD(S) SINGLE GROUP, frequency_rating: 400.0 HERTZ NOMINAL SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-648-6737, 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
663999
NSN: 5950-00-648-6737
FSC: 5950
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
body_width1.766 INCHES MAXIMUM IN
body_height2.203 INCHES MAXIMUM IN
body_length2.078 INCHES MAXIMUM IN
inclosure_typeHERMETICALLY SEALED
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
nominal_thread_size0.138 INCHES SINGLE GROUP IN
reliability_indicatorNOT ESTABLISHED
maximum_operating_temp105.0 CELSIUS DEGC
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
winding_operating_current10.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
winding_operating_voltage6.30 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY
NSN5950-00-648-6737
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PLASTIC DIELECTR TITLE COMPONENT PN 663999 MFR CAPACITOR,FIXED,PLASTI
KEY FEATURES
•
WINDING OPERATING VOLTAGE: 23.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
•
NOMINAL THREAD SIZE: 0.138 INCHES SINGLE GROUP IN
•
BODY LENGTH: 2.078 INCHES MAXIMUM IN
•
WINDING OPERATING CURRENT: 10.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
•
FREQUENCY RATING: 400.0 HERTZ NOMINAL SINGLE COMPONENT
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: 1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP 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 (FLIS)
WINDING OPERATING VOLTAGE23.00 AC VOLTS NOMINAL AND 115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
RELIABILITY INDICATORNOT ESTABLISHED
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH1.500 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
NOMINAL THREAD SIZE0.138 INCHES SINGLE GROUP IN
BODY LENGTH2.078 INCHES MAXIMUM IN
WINDING OPERATING CURRENT10.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST SECONDARY
FREQUENCY RATING400.0 HERTZ NOMINAL SINGLE COMPONENT
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH1.188 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
MAXIMUM OPERATING TEMP105.0 CELSIUS DEGC
BODY HEIGHT2.203 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
2-3Interchangeable
interchangeable cross-reference
interchangeable
18N-03Interchangeable
interchangeable cross-reference
interchangeable
50MP3-695Interchangeable
interchangeable cross-reference
interchangeable
38903Interchangeable
interchangeable cross-reference
interchangeable
13807NREVAPC21Interchangeable
interchangeable cross-reference
interchangeable
N38903Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 663999?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 663999?
663999 is a CAPACITOR,FIXED,PLASTIC DIELECTR.
What parts can replace 663999?
There are 10 known substitutes for 663999: 2-3, 18N-03, 50MP3-695 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 663999?
663999 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-648-6737. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 663999

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026