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2131856-1 — COUPLER,DIRECTIONAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2131856-1: COUPLER,DIRECTIONAL.

The COUPLER,DIRECTIONAL is a the manufacturer industrial component. Key specifications include unit_type: COAXIAL LINE, design_type: UNIDIRECTIONAL, overall_width: 1.078 INCHES NOMINAL IN, overall_height: 0.370 INCHES NOMINAL IN, overall_length: 1.608 INCHES NOMINAL IN, power_loss_in_decibels: 0.25. This part is cataloged in the U.S.

Government catalog under NSN 5985-00-512-8923, 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
2131856-1
NSN: 5985-00-512-8923
FSC: 5985 — Antennas, Waveguides, and Related Equipment
CAGE: 55974 — HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER TEST SYSTEMS DIV (USA)
SPECIFICATIONS
unit_typeCOAXIAL LINE
design_typeUNIDIRECTIONAL
overall_width1.078 INCHES NOMINAL IN
overall_height0.370 INCHES NOMINAL IN
overall_length1.608 INCHES NOMINAL IN
power_loss_in_decibels0.25
radio_frequency_rating8.0 GIGAHERTZ MINIMUM AND 12.4 GIGAHERTZ MAXIMUM
NSN5985-00-512-8923
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COUPLER,DIRECTIONAL TITLE COMPONENT PN 2131856-1 MFR COUPLER,DIRECTIONAL
KEY FEATURES
•
POWER LOSS IN DECIBELS: 0.25
•
DESIGN TYPE: UNIDIRECTIONAL
•
RADIO FREQUENCY RATING: 8.0 GIGAHERTZ MINIMUM AND 12.4 GIGAHERTZ MAXIMUM
•
UNIT TYPE: COAXIAL LINE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.370 INCHES NOMINAL IN
POWER LOSS IN DECIBELS0.25
DESIGN TYPEUNIDIRECTIONAL
RADIO FREQUENCY RATING8.0 GIGAHERTZ MINIMUM AND 12.4 GIGAHERTZ MAXIMUM
OVERALL LENGTH1.608 INCHES NOMINAL IN
OVERALL WIDTH1.078 INCHES NOMINAL IN
UNIT TYPECOAXIAL LINE
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 2
20066-6M0DReference document
Same NSN cross-reference
Reference document — Secondary reference
2023-4028-06Reference 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 2131856-1?
2131856-1 is a COUPLER,DIRECTIONAL.
What parts can replace 2131856-1?
There are 2 known substitutes for 2131856-1: 20066-6M0D, 2023-4028-06. Substitute compatibility should be verified for your specific system.
What is the NSN for 2131856-1?
2131856-1 is cataloged in the U.S. Government catalog under NSN 5985-00-512-8923. 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.