G90-144 — COUPLER,DIRECTIONAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

G90-144: COUPLER,DIRECTIONAL.

The COUPLER,DIRECTIONAL is a the manufacturer industrial component. Key specifications include unit_type: WAVEGUIDE, design_type: UNIDIRECTIONAL, overall_width: 4.000 INCHES NOMINAL IN, overall_length: 5.000 INCHES NOMINAL IN, power_loss_in_decibels: 1.0, radio_frequency_rating: 3.9 GIGAHERTZ MINIMUM AND 4.1 GIGAHERTZ MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5985-01-375-1940, 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

G90-144

NSN: 5985-01-375-1940
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 06351 — MICROWAVE ENGINEERING CORPORATION (USA)

SPECIFICATIONS

unit_type	WAVEGUIDE
design_type	UNIDIRECTIONAL
overall_width	4.000 INCHES NOMINAL IN
overall_length	5.000 INCHES NOMINAL IN
special_features	MIMIMUM DIRECTIVITY,15 DB; MAXIMUM VARIATION WITH FREQUENCY,+/- 1.0 DB; COUPLING ACCURACY AT CENTER FREQUENCY,+/- 1.0 DB DB
power_loss_in_decibels	1.0
radio_frequency_rating	3.9 GIGAHERTZ MINIMUM AND 4.1 GIGAHERTZ MAXIMUM
end_item_identification	AN/MST-T1A
NSN	5985-01-375-1940

COMPONENT DIAGRAM

KEY FEATURES

•

POWER LOSS IN DECIBELS: 1.0

•

DESIGN TYPE: UNIDIRECTIONAL

•

RADIO FREQUENCY RATING: 3.9 GIGAHERTZ MINIMUM AND 4.1 GIGAHERTZ MAXIMUM

•

UNIT TYPE: WAVEGUIDE

TECHNICAL CHARACTERISTICS

POWER LOSS IN DECIBELS	1.0
DESIGN TYPE	UNIDIRECTIONAL
RADIO FREQUENCY RATING	3.9 GIGAHERTZ MINIMUM AND 4.1 GIGAHERTZ MAXIMUM
OVERALL LENGTH	5.000 INCHES NOMINAL IN
OVERALL WIDTH	4.000 INCHES NOMINAL IN
UNIT TYPE	WAVEGUIDE
SPECIAL FEATURES	MIMIMUM DIRECTIVITY,15 DB; MAXIMUM VARIATION WITH FREQUENCY,+/- 1.0 DB; COUPLING ACCURACY AT CENTER FREQUENCY,+/- 1.0 DB DB
END ITEM IDENTIFICATION	AN/MST-T1A

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

654VE4802Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

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 G90-144?

G90-144 is a COUPLER,DIRECTIONAL.

What parts can replace G90-144?

There is 1 known substitute for G90-144: 654VE4802. Substitute compatibility should be verified for your specific system.

What is the NSN for G90-144?

G90-144 is cataloged in the U.S. Government catalog under NSN 5985-01-375-1940. This indicates validated use in U.S. government and defense supply chains.

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G90-144 — COUPLER,DIRECTIONAL

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