90TH54G — COUPLER,DIRECTIONAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

90TH54G: COUPLER,DIRECTIONAL.

The COUPLER,DIRECTIONAL is a the manufacturer industrial component. Key specifications include unit_type: WAVEGUIDE, design_type: BIDIRECTIONAL, usage_design: MAIN LINE AND SECONDARY LINE TERMINAL FITTING, overall_width: 2.980 INCHES NOMINAL IN, overall_height: 2.872 INCHES NOMINAL IN, overall_length: 4.442 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5985-00-291-0702, 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

90TH54G

NSN: 5985-00-291-0702
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 01456 — MICROWAVE DEVELOPMENT LABORATORIES, INC. DBA MICROWAVE DEVELOPMENT LABORATORIES INC (USA)

SPECIFICATIONS

unit_type	WAVEGUIDE
design_type	BIDIRECTIONAL
usage_design	MAIN LINE AND SECONDARY LINE TERMINAL FITTING
overall_width	2.980 INCHES NOMINAL IN
overall_height	2.872 INCHES NOMINAL IN
overall_length	4.442 INCHES NOMINAL IN
identifying_number	TERMINAL FITTING PART NO. M3922/59-8; PART NO. M3922/53-3
power_loss_in_decibels	20.0
radio_frequency_rating	8.65 GIGAHERTZ MINIMUM AND 11.00 GIGAHERTZ MAXIMUM
end_item_identification	AN/SPG-55B
terminal_fitting_controlling_agency	DEPARTMENT OF DEFENSE
NSN	5985-00-291-0702

COMPONENT DIAGRAM

KEY FEATURES

•

TERMINAL FITTING CONTROLLING AGENCY: DEPARTMENT OF DEFENSE

•

USAGE DESIGN: MAIN LINE AND SECONDARY LINE TERMINAL FITTING

•

POWER LOSS IN DECIBELS: 20.0

•

IDENTIFYING NUMBER: TERMINAL FITTING PART NO. M3922/59-8; PART NO. M3922/53-3

•

DESIGN TYPE: BIDIRECTIONAL

•

RADIO FREQUENCY RATING: 8.65 GIGAHERTZ MINIMUM AND 11.00 GIGAHERTZ MAXIMUM

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	2.872 INCHES NOMINAL IN
TERMINAL FITTING CONTROLLING AGENCY	DEPARTMENT OF DEFENSE
USAGE DESIGN	MAIN LINE AND SECONDARY LINE TERMINAL FITTING
POWER LOSS IN DECIBELS	20.0
IDENTIFYING NUMBER	TERMINAL FITTING PART NO. M3922/59-8; PART NO. M3922/53-3
DESIGN TYPE	BIDIRECTIONAL
RADIO FREQUENCY RATING	8.65 GIGAHERTZ MINIMUM AND 11.00 GIGAHERTZ MAXIMUM
OVERALL LENGTH	4.442 INCHES NOMINAL IN
OVERALL WIDTH	2.980 INCHES NOMINAL IN
UNIT TYPE	WAVEGUIDE

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 3

562175-000Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

2920233Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

MA5-128-S-0001Reference 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 — mutilation + specific procedure

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FREQUENTLY ASKED QUESTIONS

What is 90TH54G?

90TH54G is a COUPLER,DIRECTIONAL.

What parts can replace 90TH54G?

There are 3 known substitutes for 90TH54G: 562175-000, 2920233, MA5-128-S-0001. Substitute compatibility should be verified for your specific system.

What is the NSN for 90TH54G?

90TH54G is cataloged in the U.S. Government catalog under NSN 5985-00-291-0702. This indicates validated use in U.S. government and defense supply chains.

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