PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

443431-1Coupler,directional

Raytheon Company Dba Raytheon Co · NSN 5985-00-327-4391 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-327-4391 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-327-4391. Primary manufacturer part number: 443431-1.
Features
  • Coupler,directional — FSC 5985
  • Design Type: BIDIRECTIONAL
  • Terminal Fitting Controlling Agency: RAYTHEON COMPANY
  • Unit Type: COAXIAL LINE
  • Identifying Number: TERMINAL FITTING PART NO. 373414-1
  • Power Loss in Decibels: 30.0
  • FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
  • 4 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupler,directional, cataloged under National Stock Number 5985-00-327-4391, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-327-4391
Primary Part Number443431-1
Item NameCoupler,directional
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon Co
StatusACTIVE
Design TypeBIDIRECTIONAL
Terminal Fitting Controlling AgencyRAYTHEON COMPANY
Unit TypeCOAXIAL LINE
Identifying NumberTERMINAL FITTING PART NO. 373414-1
Power Loss in Decibels30.0
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5905-00-100-4814 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5935-00-161-4716 INTERCHANGEABLE
Socket,plug-in Electronic Compon
5330-00-291-96371501M1 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
6625-00-627-8420 INTERCHANGEABLE
Recorder Subassembly
1730-00-671-1971986-5 INTERCHANGEABLE
Cylinder,jack,hydra
Columbus Jack Corporation Div Columbus Jack
5945-00-740-823867-102 INTERCHANGEABLE
Relay,electromagnetic
Wetherill Associates Inc
5905-01-528-73519865 INTERCHANGEABLE
Resistor,fixed,film
KB Electronics Inc
Cross-Reference Index
Part NumberManufacturer
443431-1 Raytheon Company (USA)
9865 Microwave Filter Co Inc (USA)
443431-1 Raytheon Company Div Corp (USA)
443431-1 PRIMARY Raytheon Company Dba Raytheon Co (USA)
Related Parts
5905-00-100-4814INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5935-00-161-4716INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
5330-00-291-9637INTERCHANGEABLE
SEAL,PLAIN ENCASED
1501M1
6625-00-627-8420INTERCHANGEABLE
RECORDER SUBASSEMBLY
1730-00-671-1971INTERCHANGEABLE
CYLINDER,JACK,HYDRA
986-5
5945-00-740-8238INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
67-102
5905-01-528-7351INTERCHANGEABLE
RESISTOR,FIXED,FILM
9865

Frequently Asked Questions

What is NSN 5985-00-327-4391?

NSN 5985-00-327-4391 is a Coupler,directional, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-327-4391?

NSN 5985-00-327-4391 has 4 cross-referenced part numbers: 443431-1 (Raytheon Company), 9865 (Microwave Filter Co Inc), 443431-1 (Raytheon Company Div Corp), 443431-1 (Raytheon Company Dba Raytheon Co).

What NSN replaces 5985-00-327-4391?

There are 7 known substitutes for 5985-00-327-4391: 5905-00-100-4814, 5935-00-161-4716, 5330-00-291-9637 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 443431-1?

Key specifications for 443431-1: Design Type: BIDIRECTIONAL; Terminal Fitting Controlling Agency: RAYTHEON COMPANY; Unit Type: COAXIAL LINE; Identifying Number: TERMINAL FITTING PART NO. 373414-1. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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