138C139H02 — ATTENUATOR,VARIABLE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

138C139H02: ATTENUATOR,VARIABLE.

The ATTENUATOR,VARIABLE is a the manufacturer industrial component. Key specifications include body_style: COAXIAL TYPE, power_rating: 15.0 WATTS AVERAGE AND 5.0 KILOWATTS PEAK, overall_width: 3.000 INCHES NOMINAL IN, overall_height: 2.875 INCHES NOMINAL IN, overall_length: 3.750 INCHES NOMINAL IN, frequency_range: 2.900 MEGAHERTZ MINIMUM AND 3.100 MEGAHERTZ MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5985-00-090-7443, 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

138C139H02

NSN: 5985-00-090-7443
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 48306 — NORTHROP GRUMMAN SUPPORT SERVICES CORP (USA)

SPECIFICATIONS

body_style	COAXIAL TYPE
power_rating	15.0 WATTS AVERAGE AND 5.0 KILOWATTS PEAK
overall_width	3.000 INCHES NOMINAL IN
overall_height	2.875 INCHES NOMINAL IN
overall_length	3.750 INCHES NOMINAL IN
frequency_range	2.900 MEGAHERTZ MINIMUM AND 3.100 MEGAHERTZ MAXIMUM
application_design	TRANSMISSION LINE
operating_temp_range	-40.0 TO 62.0 CELSIUS DEGC
impedance_rating_in_ohms	50.0 INPUT-OUTPUT
mounting_thread_quantity	32 PER INCH
mounting_facility_pattern	FOUR POSITION RECTANGULAR
terminal_type_and_quantity	2 CONNECTOR, COAXIAL, FEMALE
NSN	5985-00-090-7443

COMPONENT DIAGRAM

KEY FEATURES

•

INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS: 0.5

•

IMPEDANCE RATING IN OHMS: 50.0 INPUT-OUTPUT

•

MOUNTING FACILITY TYPE AND QUANTITY: 4 THREADED HOLE(S)

•

FREQUENCY RANGE: 2.900 MEGAHERTZ MINIMUM AND 3.100 MEGAHERTZ MAXIMUM

•

BODY STYLE: COAXIAL TYPE

•

MOUNTING FACILITY PATTERN: FOUR POSITION RECTANGULAR

•

ADJUSTMENT DEVICE TYPE AND QUANTITY: 1 KNOB

TECHNICAL CHARACTERISTICS

INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS	0.5
IMPEDANCE RATING IN OHMS	50.0 INPUT-OUTPUT
MOUNTING FACILITY TYPE AND QUANTITY	4 THREADED HOLE(S)
OVERALL HEIGHT	2.875 INCHES NOMINAL IN
FREQUENCY RANGE	2.900 MEGAHERTZ MINIMUM AND 3.100 MEGAHERTZ MAXIMUM
BODY STYLE	COAXIAL TYPE
MOUNTING FACILITY PATTERN	FOUR POSITION RECTANGULAR
ADJUSTMENT DEVICE TYPE AND QUANTITY	1 KNOB
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH	2.500 INCHES NOMINAL IN
OVERALL ATTENUATION RANGE IN DECIBELS	+0.0 TO 20.0

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 1

4684-20VSame 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 138C139H02?

138C139H02 is a ATTENUATOR,VARIABLE.

What parts can replace 138C139H02?

There is 1 known substitute for 138C139H02: 4684-20V. Substitute compatibility should be verified for your specific system.

What is the NSN for 138C139H02?

138C139H02 is cataloged in the U.S. Government catalog under NSN 5985-00-090-7443. This indicates validated use in U.S. government and defense supply chains.

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