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A9X578 — DUMMY LOAD,ELECTRICAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

A9X578: DUMMY LOAD,ELECTRICAL.

The DUMMY LOAD,ELECTRICAL is a the manufacturer industrial component. Key specifications include power_rating: 1.000 WATTS PEAK, cooling_method: SELF-COOLED, overall_length: 1.060 INCHES NOMINAL IN, overall_diameter: 0.320 INCHES NOMINAL IN, style_designator: COAXIAL MOUNTED, termination_type: CONNECTION COAXIAL. This part is cataloged in the U.S.

Government catalog under NSN 5985-01-070-5909, 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
A9X578
NSN: 5985-01-070-5909
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 14844 — FREQUENCY ELECTRONICS INC (USA)
SPECIFICATIONS
power_rating1.000 WATTS PEAK
cooling_methodSELF-COOLED
overall_length1.060 INCHES NOMINAL IN
overall_diameter0.320 INCHES NOMINAL IN
style_designatorCOAXIAL MOUNTED
termination_typeCONNECTION COAXIAL
operating_positionALL POSITIONS
connector_end_designMALE
frequency_range_rating+3.000 TO 3.500 GIGAHERTZ
impedance_rating_in_ohms50.0 NOMINAL
voltage_standing_wave_ratio1.30 AND 1.00
ambient_temp_at_full_rated_power-55.0 CELSIUS AND 71.0 CELSIUS DEGC
NSN5985-01-070-5909
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DUMMY LOAD,ELECTRICAL TITLE COMPONENT PN A9X578 MFR DUMMY LOAD,ELECTRICAL
KEY FEATURES
•
OPERATING POSITION: ALL POSITIONS
•
TERMINATION TYPE: CONNECTION COAXIAL
•
OVERALL DIAMETER: 0.320 INCHES NOMINAL IN
•
VOLTAGE STANDING WAVE RATIO: 1.30 AND 1.00
•
STYLE DESIGNATOR: COAXIAL MOUNTED
•
COOLING METHOD: SELF-COOLED
•
CONNECTOR END DESIGN: MALE
TECHNICAL CHARACTERISTICS
OPERATING POSITIONALL POSITIONS
TERMINATION TYPECONNECTION COAXIAL
OVERALL DIAMETER0.320 INCHES NOMINAL IN
VOLTAGE STANDING WAVE RATIO1.30 AND 1.00
STYLE DESIGNATORCOAXIAL MOUNTED
COOLING METHODSELF-COOLED
CONNECTOR END DESIGNMALE
OVERALL LENGTH1.060 INCHES NOMINAL IN
IMPEDANCE RATING IN OHMS50.0 NOMINAL
AMBIENT TEMP AT FULL RATED POWER-55.0 CELSIUS AND 71.0 CELSIUS DEGC
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 2
721766-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
20258-03Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A9X578?
A9X578 is a DUMMY LOAD,ELECTRICAL.
What parts can replace A9X578?
There are 2 known substitutes for A9X578: 721766-1, 20258-03. Substitute compatibility should be verified for your specific system.
What is the NSN for A9X578?
A9X578 is cataloged in the U.S. Government catalog under NSN 5985-01-070-5909. 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.