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Technical Data Sheet
C54891 ✓ 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 length: 0.750 INCHES NOMINAL SQUARE END IN, material: STEEL OVERALL, thread_length: 2.500 INCHES MINIMUM IN, overall_length: 4.688 INCHES NOMINAL IN, shank_diameter: 0.800 INCHES MINIMUM IN, style_designator: STRAIGHT FLUTE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-00-580-7188, 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
C54891
NSN: 5136-00-580-7188
FSC: 5136
CAGE: 60NQ9 — GREENFIELD INDUSTRIES INC (USA)
SPECIFICATIONS
length0.750 INCHES NOMINAL SQUARE END IN
materialSTEEL OVERALL
thread_length2.500 INCHES MINIMUM IN
flute_quantity4
overall_length4.688 INCHES NOMINAL IN
shank_diameter0.800 INCHES MINIMUM IN
style_designatorSTRAIGHT FLUTE
thread_directionRIGHT-HAND
thread_structureREGULAR
width_across_flats0.523 INCHES NOMINAL IN
starting_chamfer_typePLUG
thread_forming_methodGROUND
NSN5136-00-580-7188
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAPACITOR,FIXED,PLASTIC DIELECTR TITLE COMPONENT PN C54891 MFR CAPACITOR,FIXED,PLASTI
KEY FEATURES
THREAD DIRECTION: RIGHT-HAND
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 0.875-14 UNF
THREAD STRUCTURE: REGULAR
STARTING CHAMFER TYPE: PLUG
MATERIAL: STEEL OVERALL
STYLE DESIGNATOR: STRAIGHT FLUTE
WIDTH ACROSS FLATS: 0.523 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 (FLIS)
THREAD DIRECTIONRIGHT-HAND
OVERALL LENGTH4.688 INCHES NOMINAL IN
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.875-14 UNF
THREAD STRUCTUREREGULAR
STARTING CHAMFER TYPEPLUG
MATERIALSTEEL OVERALL
STYLE DESIGNATORSTRAIGHT FLUTE
WIDTH ACROSS FLATS0.523 INCHES NOMINAL IN
LENGTH0.750 INCHES NOMINAL SQUARE END IN
SPECIFICATION/STANDARD DATA05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
14517Interchangeable
interchangeable cross-reference
interchangeable
MS35448-4Interchangeable
interchangeable cross-reference
interchangeable
086-24Interchangeable
interchangeable cross-reference
interchangeable
13181Interchangeable
interchangeable cross-reference
interchangeable
150 74Interchangeable
interchangeable cross-reference
interchangeable
44144Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C54891?
C54891 is a CAPACITOR,FIXED,PLASTIC DIELECTR.
What parts can replace C54891?
There are 22 known substitutes for C54891: 14517, MS35448-4, 086-24 and 19 more. Substitute compatibility should be verified for your specific system.
Is C54891 still available?
C54891 is currently cancelled.
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