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443426 — COUPLER,DIRECTIONAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

443426: COUPLER,DIRECTIONAL.

The COUPLER,DIRECTIONAL is a the manufacturer industrial component. Key specifications include diameter: 0.173 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING OVERALL, unit_type: COAXIAL LINE, loop_width: 0.750 INCHES NOMINAL IN, design_type: BIDIRECTIONAL, loop_length: 0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5985-00-321-2266, 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
443426
NSN: 5985-00-321-2266
NIINs: 003212266, 006873244, 009440450
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 00416 — VICTOR MICROWAVE, INC (USA)
SPECIFICATIONS
diameter0.173 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING OVERALL
unit_typeCOAXIAL LINE
loop_width0.750 INCHES NOMINAL IN
design_typeBIDIRECTIONAL
loop_length0.625 INCHES NOMINAL IN
overall_width0.375 INCHES NOMINAL IN
overall_height0.378 INCHES NOMINAL IN
overall_length4.000 INCHES NOMINAL IN
outside_diameter0.672 INCHES MINIMUM AND 0.677 INCHES MAXIMUM IN
style_designatorCIRCULAR
tongue_hole_typeROUND, UNTHREADED
NSN5985-00-321-2266
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLER,DIRECTIONAL TITLE COMPONENT PN 443426 MFR COUPLER,DIRECTIONAL
KEY FEATURES
•
FSC APPLICATION DATA: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
•
TERMINAL FITTING CONTROLLING AGENCY: RAYTHEON COMPANY
•
POWER LOSS IN DECIBELS: 20.0
•
IDENTIFYING NUMBER: TERMINAL FITTING PART NO. 373414-1
•
DESIGN TYPE: BIDIRECTIONAL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.378 INCHES NOMINAL IN
FSC APPLICATION DATAANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
TERMINAL FITTING CONTROLLING AGENCYRAYTHEON COMPANY
POWER LOSS IN DECIBELS20.0
IDENTIFYING NUMBERTERMINAL FITTING PART NO. 373414-1
DESIGN TYPEBIDIRECTIONAL
OVERALL LENGTH4.000 INCHES NOMINAL IN
OVERALL WIDTH1.750 INCHES NOMINAL IN
UNIT TYPECOAXIAL LINE
SUBSTITUTES & CROSS-REFERENCES 1
443426-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandDemilitarization required — mutilation + specific procedure
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FREQUENTLY ASKED QUESTIONS
What is 443426?
443426 is a COUPLER,DIRECTIONAL.
What parts can replace 443426?
There is 1 known substitute for 443426: 443426-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 443426?
443426 is cataloged in the U.S. Government catalog under NSN 5985-00-321-2266. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.