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Technical Data Sheet
PartsTable / COMPONENT / 443378-1
443378-1 ✓ 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: COAXIAL LINE, overall_width: 1.937 INCHES NOMINAL IN, overall_height: 0.374 INCHES NOMINAL IN, overall_length: 2.250 INCHES NOMINAL IN, identifying_number: TERMINAL FITTING PART NO. 373414-1, terminal_fitting_controlling_agency: RAYTHEON COMPANY.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-323-1077, 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
443378-1
NSN: 5985-00-323-1077
FSC: 5985
CAGE: 54X10 — RAYTHEON COMPANY (USA)
SPECIFICATIONS
unit_typeCOAXIAL LINE
overall_width1.937 INCHES NOMINAL IN
overall_height0.374 INCHES NOMINAL IN
overall_length2.250 INCHES NOMINAL IN
identifying_numberTERMINAL FITTING PART NO. 373414-1
terminal_fitting_controlling_agencyRAYTHEON COMPANY
NSN5985-00-323-1077
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLER,DIRECTIONAL TITLE COMPONENT PN 443378-1 MFR COUPLER,DIRECTIONAL
KEY FEATURES
•
TERMINAL FITTING CONTROLLING AGENCY: RAYTHEON COMPANY
•
UNIT TYPE: COAXIAL LINE
•
IDENTIFYING NUMBER: TERMINAL FITTING PART NO. 373414-1
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH1.937 INCHES NOMINAL IN
TERMINAL FITTING CONTROLLING AGENCYRAYTHEON COMPANY
UNIT TYPECOAXIAL LINE
IDENTIFYING NUMBERTERMINAL FITTING PART NO. 373414-1
OVERALL HEIGHT0.374 INCHES NOMINAL IN
OVERALL LENGTH2.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
5963Interchangeable
interchangeable cross-reference
interchangeable
326Interchangeable
interchangeable cross-reference
interchangeable
ST281Interchangeable
interchangeable cross-reference
interchangeable
694040-161Interchangeable
interchangeable cross-reference
interchangeable
180TGInterchangeable
interchangeable cross-reference
interchangeable
73Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 443378-1?
443378-1 is a COUPLER,DIRECTIONAL.
What parts can replace 443378-1?
There are 18 known substitutes for 443378-1: 5963, 326, ST281 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 443378-1?
443378-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-323-1077. 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