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4285A — DUMMY LOAD,ELECTRICAL

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

4285A: DUMMY LOAD,ELECTRICAL.

The DUMMY LOAD,ELECTRICAL is a the manufacturer industrial component. Key specifications include phase: SINGLE, overall_width: 426.0 MILLIMETERS NOMINAL MM, overall_height: 177.0 MILLIMETERS NOMINAL MM, overall_length: 498.0 MILLIMETERS NOMINAL MM, frequency_rating: 47.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM, ac_voltage_rating: 115.0 VOLTS NOMINAL AND 220.0 VOLTS NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 5985-00-087-5065, 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→ 4285A
NSN: 5985-00-087-5065
NIINs: 000875065, 011988389, 013801319
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 30669 — E AND R ELECTRONICS INC DBA DUMONT OSCILLOSCOPE (USA)
SPECIFICATIONS
phaseSINGLE
overall_width426.0 MILLIMETERS NOMINAL MM
overall_height177.0 MILLIMETERS NOMINAL MM
overall_length498.0 MILLIMETERS NOMINAL MM
frequency_rating47.0 HERTZ MINIMUM AND 60.0 HERTZ MAXIMUM
ac_voltage_rating115.0 VOLTS NOMINAL AND 220.0 VOLTS NOMINAL
dc_leakage_test_voltage0.0 MINIMUM AND 2.0 MAXIMUM
NSN5985-00-087-5065
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DUMMY LOAD,ELECTRICAL TITLE COMPONENT PN 4285A MFR DUMMY LOAD,ELECTRICAL
KEY FEATURES
•
OPERATING POSITION: VERTICAL
•
TERMINATION TYPE: CONNECTION COAXIAL
•
OVERALL DIAMETER: 1.000 INCHES NOMINAL IN
•
VOLTAGE STANDING WAVE RATIO: 1.30
•
STYLE DESIGNATOR: COAXIAL MOUNTED
•
COOLING METHOD: SELF-COOLED
•
CONNECTOR END DESIGN: FEMALE
TECHNICAL CHARACTERISTICS
OPERATING POSITIONVERTICAL
TERMINATION TYPECONNECTION COAXIAL
OVERALL DIAMETER1.000 INCHES NOMINAL IN
VOLTAGE STANDING WAVE RATIO1.30
STYLE DESIGNATORCOAXIAL MOUNTED
COOLING METHODSELF-COOLED
CONNECTOR END DESIGNFEMALE
OVERALL LENGTH3.000 INCHES NOMINAL IN
IMPEDANCE RATING IN OHMS50.0 NOMINAL
FREQUENCY RANGE RATING+0.000 TO 100.000 MEGAHERTZ
SUBSTITUTES & CROSS-REFERENCES 1
DA-454/USame 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)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4285A?
4285A is a DUMMY LOAD,ELECTRICAL. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4285A?
There is 1 known substitute for 4285A: DA-454/U. Substitute compatibility should be verified for your specific system.
What is the NSN for 4285A?
4285A is cataloged in the U.S. Government catalog under NSN 5985-00-087-5065. 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.