PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 551Y
551Y ✓ 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 material: STEEL CASE, unit_type: CENTRIFUGAL, case_shape: ROUND, mounting_type: PANEL, overall_depth: 3.790 INCHES NOMINAL IN, overall_width: 3.790 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2925-00-500-5027, 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
551Y
NSN: 2925-00-500-5027
FSC: 2925
CAGE: 72217 — TELEPHONE COMPANY OF AMERICA INCORPORATED (USA)
SPECIFICATIONS
materialSTEEL CASE
unit_typeCENTRIFUGAL
case_shapeROUND
dial_quantity1
mounting_typePANEL
overall_depth3.790 INCHES NOMINAL IN
overall_width3.790 INCHES NOMINAL IN
pointer_colorWHITE
overall_height3.410 INCHES NOMINAL IN
scale_quantity1
operating_range+0.0 TO 1500.0 REVOLUTIONS PER MINUTE
overall_diameter3.400 INCHES NOMINAL IN
NSN2925-00-500-5027
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,MICA DIELECTRIC TITLE COMPONENT PN 551Y MFR CAPACITOR,FIXED,MICA D
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)
OVERALL LENGTH1.027 INCHES NOMINAL IN
SPECIAL FEATURESCABLE ENTRANCE DIAMETER: 0.266 IN. NOM.;VOLTAGE RATING IN VOLTS: 18000.0 DC;HOLE ACCOMMODATION DIAMETER: 0.290 IN. MIN. AND 0.300 IN. MAX. IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
41641Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-5458Interchangeable
interchangeable cross-reference
interchangeable
AN4164-11Interchangeable
interchangeable cross-reference
interchangeable
25405Interchangeable
interchangeable cross-reference
interchangeable
65061Interchangeable
interchangeable cross-reference
interchangeable
5061Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy 551Y?
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 551Y?
551Y is a CAPACITOR,FIXED,MICA DIELECTRIC.
What parts can replace 551Y?
There are 26 known substitutes for 551Y: 41641, MIL-S-5458, AN4164-11 and 23 more. Substitute compatibility should be verified for your specific system.
Is 551Y still available?
551Y is currently cancelled.
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 — 551Y

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