179.640-8 — ATTENUATOR,VARIABLE

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

179.640-8: ATTENUATOR,VARIABLE.

The ATTENUATOR,VARIABLE is a the manufacturer industrial component. Key specifications include body_style: COAXIAL TYPE, power_rating: 1.0 WATTS AVERAGE AND 500.0 WATTS PEAK, overall_width: 5.590 INCHES NOMINAL IN, overall_height: 5.160 INCHES NOMINAL IN, overall_length: 7.620 INCHES NOMINAL IN, frequency_range: 0.000 GIGAHERTZ MINIMUM AND 4.200 GIGAHERTZ MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5985-01-164-7405, 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

179.640-8

NSN: 5985-01-164-7405
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: C1798 — AEROMARITIME SYSTEMBAU GMBH (DEU)

SPECIFICATIONS

body_style	COAXIAL TYPE
power_rating	1.0 WATTS AVERAGE AND 500.0 WATTS PEAK
overall_width	5.590 INCHES NOMINAL IN
overall_height	5.160 INCHES NOMINAL IN
overall_length	7.620 INCHES NOMINAL IN
frequency_range	0.000 GIGAHERTZ MINIMUM AND 4.200 GIGAHERTZ MAXIMUM
application_design	TRANSMISSION LINE
impedance_rating_in_ohms	50.0 INPUT-OUTPUT
terminal_type_and_quantity	2 CONNECTOR, COAXIAL, FEMALE
voltage_standing_wave_ratio	1.15
attenuation_variation_method	CONTINUOUS
adjustment_device_type_and_quantity	1 KNOB
NSN	5985-01-164-7405

COMPONENT DIAGRAM

KEY FEATURES

•

IMPEDANCE RATING IN OHMS: 50.0 INPUT-OUTPUT

•

FREQUENCY RANGE: 0.000 GIGAHERTZ MINIMUM AND 4.200 GIGAHERTZ MAXIMUM

•

BODY STYLE: COAXIAL TYPE

•

ADJUSTMENT DEVICE TYPE AND QUANTITY: 1 KNOB

•

OVERALL ATTENUATION RANGE IN DECIBELS: +0.0 TO 20.0

•

VOLTAGE STANDING WAVE RATIO: 1.15

•

OVERALL ATTENUATION ACCURACY IN DECIBELS: -0.20 TO 0.20

TECHNICAL CHARACTERISTICS

IMPEDANCE RATING IN OHMS	50.0 INPUT-OUTPUT
OVERALL HEIGHT	5.160 INCHES NOMINAL IN
FREQUENCY RANGE	0.000 GIGAHERTZ MINIMUM AND 4.200 GIGAHERTZ MAXIMUM
BODY STYLE	COAXIAL TYPE
ADJUSTMENT DEVICE TYPE AND QUANTITY	1 KNOB
OVERALL ATTENUATION RANGE IN DECIBELS	+0.0 TO 20.0
VOLTAGE STANDING WAVE RATIO	1.15
OVERALL ATTENUATION ACCURACY IN DECIBELS	-0.20 TO 0.20
OVERALL LENGTH	7.620 INCHES NOMINAL IN
ATTENUATION VARIATION METHOD	CONTINUOUS

SUBSTITUTES & CROSS-REFERENCES 2

MODELL 5431Reference document

Same NSN cross-reference

Reference document — Secondary reference

910-20-11Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is 179.640-8?

179.640-8 is a ATTENUATOR,VARIABLE.

What parts can replace 179.640-8?

There are 2 known substitutes for 179.640-8: MODELL 5431, 910-20-11. Substitute compatibility should be verified for your specific system.

What is the NSN for 179.640-8?

179.640-8 is cataloged in the U.S. Government catalog under NSN 5985-01-164-7405. This indicates validated use in U.S. government and defense supply chains.

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