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PartsTable / COMPONENT / GM-573-55
GM-573-55 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The COUPLER,DIRECTIONAL is a the manufacturer industrial component. Key specifications include unit_type: TRANSMISSION LINE, design_type: UNIDIRECTIONAL, usage_design: MAIN LINE TERMINAL FITTING, overall_width: 1.250 INCHES NOMINAL IN, overall_height: 3.188 INCHES NOMINAL IN, overall_length: 3.063 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-581-9665, 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
GM-573-55
NSN: 5985-00-581-9665
FSC: 5985
CAGE: 77820 — AMPHENOL CORP DIV AMPHENOL AEROSPACE OPERATIONS (USA)
SPECIFICATIONS
unit_typeTRANSMISSION LINE
design_typeUNIDIRECTIONAL
usage_designMAIN LINE TERMINAL FITTING
overall_width1.250 INCHES NOMINAL IN
overall_height3.188 INCHES NOMINAL IN
overall_length3.063 INCHES NOMINAL IN
identifying_numberTERMINAL FITTING TYPE C,NO. 1-389-1
power_loss_in_decibels0.5
radio_frequency_rating220.0 MEGAHERTZ NOMINAL
terminal_fitting_controlling_agencyDADE ELECTRIC CO
NSN5985-00-581-9665
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLER,DIRECTIONAL TITLE COMPONENT PN GM-573-55 MFR COUPLER,DIRECTIONAL
KEY FEATURES
•
IDENTIFYING NUMBER: TERMINAL FITTING TYPE C,NO. 1-389-1
•
POWER LOSS IN DECIBELS: 0.5
•
UNIT TYPE: TRANSMISSION LINE
•
DESIGN TYPE: UNIDIRECTIONAL
•
TERMINAL FITTING CONTROLLING AGENCY: DADE ELECTRIC CO
•
RADIO FREQUENCY RATING: 220.0 MEGAHERTZ NOMINAL
•
USAGE DESIGN: MAIN LINE TERMINAL FITTING
TECHNICAL CHARACTERISTICS (FLIS)
IDENTIFYING NUMBERTERMINAL FITTING TYPE C,NO. 1-389-1
POWER LOSS IN DECIBELS0.5
UNIT TYPETRANSMISSION LINE
DESIGN TYPEUNIDIRECTIONAL
TERMINAL FITTING CONTROLLING AGENCYDADE ELECTRIC CO
RADIO FREQUENCY RATING220.0 MEGAHERTZ NOMINAL
USAGE DESIGNMAIN LINE TERMINAL FITTING
OVERALL WIDTH1.250 INCHES NOMINAL IN
OVERALL LENGTH3.063 INCHES NOMINAL IN
OVERALL HEIGHT3.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
5735-5Interchangeable
interchangeable cross-reference
interchangeable
5413 1/4 IN.Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GM-573-55?
GM-573-55 is a COUPLER,DIRECTIONAL.
What parts can replace GM-573-55?
There are 2 known substitutes for GM-573-55: 5735-5, 5413 1/4 IN.. Substitute compatibility should be verified for your specific system.
What is the NSN for GM-573-55?
GM-573-55 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-581-9665. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026