PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

443387-1Coupler,directional

Raytheon Company Dba Raytheon Co · NSN 5985-00-321-1663 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-321-1663 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-321-1663. Primary manufacturer part number: 443387-1.
Features
  • Coupler,directional — FSC 5985
  • Terminal Fitting Controlling Agency: RAYTHEON COMPANY
  • Design Type: UNIDIRECTIONAL
  • Unit Type: COAXIAL LINE
  • Identifying Number: TERMINAL FITTING PART NO. 373414-1
  • FSC Application Data: ANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
  • 4 verified cross-references
  • Primary manufacturer: Raytheon Company Dba Raytheon Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Coupler,directional, cataloged under National Stock Number 5985-00-321-1663, 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 5 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-321-1663
Primary Part Number443387-1
Item NameCoupler,directional
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon Co
StatusACTIVE
Terminal Fitting Controlling AgencyRAYTHEON COMPANY
Design TypeUNIDIRECTIONAL
Unit TypeCOAXIAL LINE
Identifying NumberTERMINAL FITTING PART NO. 373414-1
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-089-7856 INTERCHANGEABLE
Terminal Box
5342-00-101-51195601 INTERCHANGEABLE
Clip,spring
Pdi Ground Support Systems, Inc.
2520-00-242-3316 INTERCHANGEABLE
Clutch Assembly,hub
5340-00-302-18405601 INTERCHANGEABLE
Holder,door
Eastern Co Div Eberhard Manufacturing
6350-00-338-42345601 INTERCHANGEABLE
Tape,recording
Adt Security Systems Inc
5950-00-484-364310664829 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Aviation and Missile Command
5961-00-762-13991088138-1 INTERCHANGEABLE
Retainer,semiconductor Device
Lockheed Martin Corporation Div Rms - Mitchel Field
5910-01-046-7002913924-1 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Raytheon Company Dba Raytheon Co
4730-01-064-25535601 INTERCHANGEABLE
Elbow Assembly,connector
Avox Systems Inc Dba Avox Systems Inc
5962-01-108-7141 INTERCHANGEABLE
Microcircuit,memory
Cross-Reference Index
Part NumberManufacturer
443387-1 Raytheon Company (USA)
443387-1 PRIMARY Raytheon Company Dba Raytheon Co (USA)
443387-1 Raytheon Company Div Corp (USA)
5601 Microwave Filter Co Inc (USA)
Related Parts
5940-00-089-7856INTERCHANGEABLE
TERMINAL BOX
5342-00-101-5119INTERCHANGEABLE
CLIP,SPRING
5601
2520-00-242-3316INTERCHANGEABLE
CLUTCH ASSEMBLY,HUB
5340-00-302-1840INTERCHANGEABLE
HOLDER,DOOR
5601
6350-00-338-4234INTERCHANGEABLE
TAPE,RECORDING
5601
5950-00-484-3643INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
10664829
5961-00-762-1399INTERCHANGEABLE
RETAINER,SEMICONDUCTOR DEVICE
1088138-1
5910-01-046-7002INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
913924-1
4730-01-064-2553INTERCHANGEABLE
ELBOW ASSEMBLY,CONNECTOR
5601
5962-01-108-7141INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5180-01-153-2795INTERCHANGEABLE
TOOL KIT,SCREW THREAD INSERT
5601
6520-01-164-3106INTERCHANGEABLE
SWAB,DENTAL
5601

Frequently Asked Questions

What is NSN 5985-00-321-1663?

NSN 5985-00-321-1663 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 5985-00-321-1663?

NSN 5985-00-321-1663 has 4 cross-referenced part numbers: 443387-1 (Raytheon Company), 443387-1 (Raytheon Company Dba Raytheon Co), 443387-1 (Raytheon Company Div Corp), 5601 (Microwave Filter Co Inc).

What NSN replaces 5985-00-321-1663?

There are 12 known substitutes for 5985-00-321-1663: 5940-00-089-7856, 5342-00-101-5119, 2520-00-242-3316 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 443387-1?

Key specifications for 443387-1: Overall Width: 1.937 INCHES NOMINAL IN; Terminal Fitting Controlling Agency: RAYTHEON COMPANY; Design Type: UNIDIRECTIONAL; Unit Type: COAXIAL LINE. 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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