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Technical Data Sheet
PartsTable / MRO / 491-6
491-6 ✓ Verified by PartsTable
Zyxel · 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

RESISTOR,VARIABLE,WIRE WOUND,NON. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-01-667-5016, 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→ 491-6
NSN: 5999-01-667-5016
FSC: 5999
CAGE: 09XP2 — ARGON ST, INC. (USA)
SPECIFICATIONS
Part Number491-6
ManufacturerZyxel
NSN5999-01-667-5016
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 491-6 MFR Zyxel RESISTOR,VARIABLE,WIRE WOUND,NON
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYDUMMY DIMM
END ITEM IDENTIFICATIONBLADE COMP
PART NAME ASSIGNED BY CONTROLLING AGENCYDUMMY DIMM
END ITEM IDENTIFICATIONBLADE COMP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
1473758-03Interchangeable
interchangeable cross-reference
interchangeable
RCS200Interchangeable
interchangeable cross-reference
interchangeable
C4916Interchangeable
interchangeable cross-reference
interchangeable
4916Interchangeable
interchangeable cross-reference
interchangeable
1016Interchangeable
interchangeable cross-reference
interchangeable
758TT066Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 491-6?
491-6 is a RESISTOR,VARIABLE,WIRE WOUND,NON manufactured by Zyxel. It is classified as a MRO (MRO_GENERAL).
What parts can replace 491-6?
There are 21 known substitutes for 491-6: 1473758-03, RCS200, C4916 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 491-6?
491-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-01-667-5016. 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