PartsTable
Technical Data Sheet
PartsTable / MRO / 4551
4551 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
SAS cables have specific lane counts: 4i (internal) or 4e (external) Cable length matters — too short won't reach, too long creates clutter
Verify connector type on BOTH ends — many SAS cables are asymmetric
PRODUCT OVERVIEW

CAPACITOR,FIXED,PAPER DIELECTRIC. Key specifications include end_item_identification: KC-46 AIRCRAFT, reference_number_differentiating_characteristics: ITEM IS FAA CERTIFIED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-220-9757, 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
MRO→ MRO_GENERAL→ 4551
NSN: 5999-00-220-9757
FSC: 5999
CAGE: 71400 — COOPER BUSSMANN, LLC DBA COOPER INDUSTRIES (USA)
SPECIFICATIONS
end_item_identificationKC-46 AIRCRAFT
reference_number_differentiating_characteristicsITEM IS FAA CERTIFIED
NSN5999-00-220-9757
COMPONENT DIAGRAM
CONN A SFF-8482 CONN B SFF-8087 LENGTH: SAS CABLE ASSEMBLY | SFF-8482 to SFF-8087 Cable length: | SAS | Shielded TITLE CABLE ASSY PN 4551 MFR CAPACITOR,FIXED,PAPER DIELECTRIC
KEY FEATURES
•
MOUNTING METHOD: UNTHREADED HOLE(S)
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.175 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FERRULE CLIP W/STOP
•
SURFACE TREATMENT: NICKEL BODY
•
HOLE ACCOMMODATION DIAMETER: 0.406 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY BODY
•
MOUNTING FACILITY QUANTITY: 1
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)
MOUNTING METHODUNTHREADED HOLE(S)
OVERALL LENGTH0.383 INCHES NOMINAL IN
UNTHREADED MOUNTING HOLE DIAMETER0.175 INCHES NOMINAL IN
STYLE DESIGNATORFERRULE CLIP W/STOP
SURFACE TREATMENTNICKEL BODY
HOLE ACCOMMODATION DIAMETER0.406 INCHES NOMINAL IN
MATERIALCOPPER ALLOY BODY
MOUNTING FACILITY QUANTITY1
OVERALL WIDTH0.469 INCHES NOMINAL IN
OVERALL HEIGHT0.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
5120PL0720811Interchangeable
interchangeable cross-reference
interchangeable
294-73Interchangeable
interchangeable cross-reference
interchangeable
AS81969/19 TY2CL1CPCInterchangeable
interchangeable cross-reference
interchangeable
ES-2648-2A-5Interchangeable
interchangeable cross-reference
interchangeable
1401-21Interchangeable
interchangeable cross-reference
interchangeable
BACT42C2A1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4551?
4551 is a CAPACITOR,FIXED,PAPER DIELECTRIC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4551?
There are 16 known substitutes for 4551: 5120PL0720811, 294-73, AS81969/19 TY2CL1CPC and 13 more. Substitute compatibility should be verified for your specific system.
Is 4551 still available?
4551 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026