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Technical Data Sheet

KCII/1449 — ATTENUATOR,FIXED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

KCII/1449: ATTENUATOR,FIXED.

The ATTENUATOR,FIXED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, body_style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE, power_rating: 2.0 WATTS AVERAGE2.0 WATTS AVERAGE, overall_length: 0.750 INCHES MAXIMUM0.750 INCHES MAXIMUM IN, frequency_range: 0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM18.000 GIGAHERTZ MAXIMUM, mounting_method: CONNECTORCONNECTOR. This part is cataloged in the U.S.

Government catalog under NSN 5985-01-025-7285, 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
KCII/1449
NSN: 5985-01-025-7285
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 5N063 — KOEHLKE COMPONENTS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
body_styleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
power_rating2.0 WATTS AVERAGE2.0 WATTS AVERAGE
overall_length0.750 INCHES MAXIMUM0.750 INCHES MAXIMUM IN
frequency_range0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM18.000 GIGAHERTZ MAXIMUM
mounting_methodCONNECTORCONNECTOR
overall_diameter0.312 INCHES NOMINAL0.312 INCHES NOMINAL IN
precious_materialGOLD
surface_treatmentPASSIVATE BODY
application_designTRANSMISSION LINETRANSMISSION LINE
fsc_application_dataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
operating_temp_range-55.0 TO 125.0 CELSIUS-55.0 TO 125.0 CELSIUS DEGC
NSN5985-01-025-7285
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ATTENUATOR,FIXED TITLE COMPONENT PN KCII/1449 MFR ATTENUATOR,FIXED
KEY FEATURES
•
FSC APPLICATION DATA: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
•
FREQUENCY RANGE: 0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM18.000 GIGAHERTZ MAXIMUM
•
BODY STYLE: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
•
OVERALL DIAMETER: 0.312 INCHES NOMINAL0.312 INCHES NOMINAL IN
•
PRECIOUS MATERIAL: GOLD
•
VOLTAGE STANDING WAVE RATIO: 1.15 AND 1.15 AND 1.25 AND 1.25 AND 1.50 AND 1.50 AND 1.801.80
•
INPUT IMPEDANCE RATING IN OHMS: 50.050.0
•
MOUNTING METHOD: CONNECTORCONNECTOR
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
FREQUENCY RANGE0.000 HERTZ MINIMUM AND 0.000 HERTZ MINIMUM AND 18.000 GIGAHERTZ MAXIMUM18.000 GIGAHERTZ MAXIMUM
BODY STYLEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
OVERALL DIAMETER0.312 INCHES NOMINAL0.312 INCHES NOMINAL IN
PRECIOUS MATERIALGOLD
VOLTAGE STANDING WAVE RATIO1.15 AND 1.15 AND 1.25 AND 1.25 AND 1.50 AND 1.50 AND 1.801.80
INPUT IMPEDANCE RATING IN OHMS50.050.0
MOUNTING METHODCONNECTORCONNECTOR
RF SIGNAL ATTENUATION IN DECIBELS1.01.0
OVERALL LENGTH0.750 INCHES MAXIMUM0.750 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5985 — Antennas, Waveguides, and Related Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5985-00-001-1854 5985-00-001-1862 5985-00-001-1869 5985-00-001-1870 5985-00-001-1871 5985-00-001-1874 5985-00-001-1875 5985-00-001-1876
SUBSTITUTES & CROSS-REFERENCES 3
EMC4401Reference document
Same NSN cross-reference
Reference document — Secondary reference
4401Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MDC7065-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is KCII/1449?
KCII/1449 is a ATTENUATOR,FIXED.
What parts can replace KCII/1449?
There are 3 known substitutes for KCII/1449: EMC4401, 4401, MDC7065-1. Substitute compatibility should be verified for your specific system.
What is the NSN for KCII/1449?
KCII/1449 is cataloged in the U.S. Government catalog under NSN 5985-01-025-7285. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.