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Technical Data Sheet
PartsTable / MRO / B-21
B-21 ✓ 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,CERAMIC DIELECTR. Key specifications include width: 0.125 INCHES NOMINAL TIP IN, length: 10.000 INCHES NOMINAL BLADE IN, diameter: 0.188 INCHES NOMINAL SHANK IN, material: PLASTIC HANDLE, body_style: CHAMFERED ENDS, bore_shape: STRAIGHT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-045-6309, 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→ B-21
NSN: 5999-00-045-6309
FSC: 5999
CAGE: 56365 — SCHNEIDER ELECTRIC USA, INC. (USA)
SPECIFICATIONS
width0.125 INCHES NOMINAL TIP IN
length10.000 INCHES NOMINAL BLADE IN
diameter0.188 INCHES NOMINAL SHANK IN
materialPLASTIC HANDLE
body_styleCHAMFERED ENDS
bore_shapeSTRAIGHT
bore_styleINSIDE CHAMFER STRAIGHT-THRU BORE
body_length2.0525 INCHES MINIMUM AND 2.0725 INCHES MAXIMUM IN
shank_shapeROUND
thread_size11/16-18
constructionLAMINATED
flange_width0.0370 INCHES NOMINAL IN
NSN5999-00-045-6309
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 B-21 MFR CAPACITOR,FIXED,CERAMIC DIELECTR
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
100X7Interchangeable
interchangeable cross-reference
interchangeable
B21Interchangeable
interchangeable cross-reference
interchangeable
J512Interchangeable
interchangeable cross-reference
interchangeable
315-000-R2K0-209CInterchangeable
interchangeable cross-reference
interchangeable
13084939-501Interchangeable
interchangeable cross-reference
interchangeable
P22499-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-21?
B-21 is a CAPACITOR,FIXED,CERAMIC DIELECTR. It is classified as a MRO (MRO_GENERAL).
What parts can replace B-21?
There are 11 known substitutes for B-21: 100X7, B21, J512 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B-21?
B-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-045-6309. 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