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Technical Data Sheet
A420B ✓ Verified by PartsTable
· COMPONENT
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 ATTENUATOR,FIXED is a the manufacturer industrial component. Key specifications include body_style: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE, power_rating: 500.0 MILLIWATTS AVERAGE, overall_length: 2.300 INCHES MAXIMUM IN, frequency_range: 0.000 HERTZ MINIMUM AND 2.500 GIGAHERTZ MAXIMUM, mounting_method: CONNECTOR, overall_diameter: 0.625 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-845-4395, 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
A420B
NSN: 5985-00-845-4395
FSC: 5985
CAGE: 64537 — CAES SYSTEMS LLC (USA)
SPECIFICATIONS
body_styleROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
power_rating500.0 MILLIWATTS AVERAGE
overall_length2.300 INCHES MAXIMUM IN
frequency_range0.000 HERTZ MINIMUM AND 2.500 GIGAHERTZ MAXIMUM
mounting_methodCONNECTOR
overall_diameter0.625 INCHES MAXIMUM IN
precious_materialSILVER
surface_treatmentSILVER BODY
application_designTRANSMISSION LINE
fsc_application_dataANTENNAS,WAVE GUIDES,AND RELATED EQUIPMENT
operating_temp_range+0.0 TO 75.0 CELSIUS DEGC
unpackaged_unit_weight2.500 OUNCES OZ
NSN5985-00-845-4395
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available ATTENUATOR,FIXED TITLE COMPONENT PN A420B MFR ATTENUATOR,FIXED
KEY FEATURES
SURFACE TREATMENT: SILVER BODY
FSC APPLICATION DATA: ANTENNAS,WAVE GUIDES,AND RELATED EQUIPMENT
BODY STYLE: ROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
PRECIOUS MATERIAL: SILVER
VOLTAGE STANDING WAVE RATIO: 1.25
RF SIGNAL ATTENUATION IN DECIBELS: 20.0
TERMINAL TYPE AND QUANTITY: 2 CONNECTOR
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTSILVER BODY
FSC APPLICATION DATAANTENNAS,WAVE GUIDES,AND RELATED EQUIPMENT
BODY STYLEROUND, TERMINAL/TERMINALS IN OPPOSITE SURFACE
PRECIOUS MATERIALSILVER
VOLTAGE STANDING WAVE RATIO1.25
RF SIGNAL ATTENUATION IN DECIBELS20.0
OVERALL LENGTH2.300 INCHES MAXIMUM IN
TERMINAL TYPE AND QUANTITY2 CONNECTOR
UNPACKAGED UNIT WEIGHT2.500 OUNCES OZ
COAXIAL CONNECTOR SERIES DESIGNATIONBNC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
MIL-DTL-8603Interchangeable
interchangeable cross-reference
interchangeable
MS21103D20Interchangeable
interchangeable cross-reference
interchangeable
R42C18205-185Interchangeable
interchangeable cross-reference
interchangeable
49492Interchangeable
interchangeable cross-reference
interchangeable
75-520Interchangeable
interchangeable cross-reference
interchangeable
75-530Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A420B?
A420B is a ATTENUATOR,FIXED.
What parts can replace A420B?
There are 18 known substitutes for A420B: MIL-DTL-8603, MS21103D20, R42C18205-185 and 15 more. Substitute compatibility should be verified for your specific system.
Is A420B still available?
A420B is currently cancelled.
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