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Technical Data Sheet
PartsTable / MRO / CP-7821-K9
CP-7821-K9 ✓ Verified by PartsTable
CISCO · MRO · MRO_GENERAL
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

The Cisco IP Phone 7821 is a CISCO industrial component. Key specifications include PoE: 802.3af compliant, Audio: HD voice capable, Display: 3.5" grayscale backlit, Network: 10/100/1000 Ethernet. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5805-01-629-7473, 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→ CP-7821-K9
NSN: 5805-01-629-7473
FSC: 5805
CAGE: A9937 — TELESPAZIO S.P.A. (ITA)
SPECIFICATIONS
PoE802.3af compliant
AudioHD voice capable
Lines2
Display3.5" grayscale backlit
Network10/100/1000 Ethernet
NSN5805-01-629-7473
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: CISCO Cisco IP Phone 7821 TITLE COMPONENT PN CP-7821-K9 MFR CISCO Cisco IP Phone 7821
KEY FEATURES
•
STYLE DESIGNATOR: PUSH BUTTON, WITH BUTTONS FOR SPECIAL FUNCTIONS
•
MATERIAL: PLASTIC CASE
•
DC VOLTAGE RATING: 48.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT207.0 MILLIMETERS NOMINAL MM
OVERALL WIDTH206.0 MILLIMETERS NOMINAL MM
OVERALL DEPTH28.0 MILLIMETERS NOMINAL MM
SPECIAL FEATURESALWAYS-ON; ADVANCED IP TELEPHONY FEATURES; FULLY PROGRAMMABLE LINE KEYS; HANDLES MULTIPLE CALLS FOR EACH DIRECTORY NUMBER; FULL-DUPLEX SPEAKERPHONE; FIXED FUNCTION KEYS: SERVICE, MESSAGING, DIRECTORY, HOLD/RESUME, TRANSFER, CONFERENCE; WHITE BACKLIT, GREYSCALE, 3.5IN. DISPLAY; BLACK BEZEL; DUAL-POSITION FOOT STAND; WALL MOUNTABLE IN
STYLE DESIGNATORPUSH BUTTON, WITH BUTTONS FOR SPECIAL FUNCTIONS
MATERIALPLASTIC CASE
DC VOLTAGE RATING48.0 VOLTS NOMINAL FIRST OPERATING POWER RQMT
PART NAME ASSIGNED BY CONTROLLING AGENCYIP PHONE 7821 SUPPORTING 2 LINES
FEATURES PROVIDEDWIRELESS TELEPHONY
INCOMING CALL SIGNAL DEVICERINGER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
CP-7821-K9=Interchangeable
Same NIIN cross-reference
interchangeable
17.000.0845.00Interchangeable
Same NIIN cross-reference
interchangeable
26146581Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CP-7821-K9?
CP-7821-K9 is a Cisco IP Phone 7821 manufactured by CISCO. It is classified as a MRO (MRO_GENERAL).
What parts can replace CP-7821-K9?
There are 3 known substitutes for CP-7821-K9: CP-7821-K9=, 17.000.0845.00, 26146581. Substitute compatibility should be verified for your specific system.
What is the NSN for CP-7821-K9?
CP-7821-K9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5805-01-629-7473. 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