PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

132123-1Waveguide Assembly

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5985-00-203-5866 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-203-5866 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-203-5866. Primary manufacturer part number: 132123-1.
Features
  • Waveguide Assembly — FSC 5985
  • 5 verified cross-references
  • Primary manufacturer: L3harris Technologies, Inc Div Space & Airborne Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-00-203-5866, 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 L3harris Technologies, Inc Div Space & Airborne Systems. This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWaveguide Assembly
FSC / FSG5985 — No Item Name Available (FSG 59)
ManufacturersLitton Systems Inc Airtron Div (CAGE 80006); Astro Microwave Inc (CAGE 5Z167); L3harris Technologies, Inc Div Space & Airborne Systems (CAGE 24930); Microwave Engineering Corporation (CAGE 06351); Microtech Inc Dba Microtech Inc (CAGE 54647)
Technical Specifications
ParameterValue
NSN5985-00-203-5866
Primary Part Number132123-1
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5365-01-234-2414 INTERCHANGEABLE
Spacer
5999-01-488-605712327-1 INTERCHANGEABLE
Cooler,air,electronic Equipment
Coda Octopus Engineering, Inc.
3020-01-503-35841321231 INTERCHANGEABLE
Gear,helical
Jlg Industries, Inc.
Cross-Reference Index
Part NumberManufacturer
123271 Litton Systems Inc Airtron Div (USA)
132123-1 Astro Microwave Inc (USA)
132123-1 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
132123-1 Microwave Engineering Corporation (USA)
225528 Microtech Inc Dba Microtech Inc (USA)
Related Parts
5365-01-234-2414INTERCHANGEABLE
SPACER
5999-01-488-6057INTERCHANGEABLE
COOLER,AIR,ELECTRONIC EQUIPMENT
12327-1
3020-01-503-3584INTERCHANGEABLE
GEAR,HELICAL
1321231

Frequently Asked Questions

What is NSN 5985-00-203-5866?

NSN 5985-00-203-5866 is a Waveguide Assembly, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-203-5866?

NSN 5985-00-203-5866 has 5 cross-referenced part numbers: 123271 (Litton Systems Inc Airtron Div), 132123-1 (Astro Microwave Inc), 132123-1 (L3harris Technologies, Inc Div Space & Airborne Systems), 132123-1 (Microwave Engineering Corporation), 225528 (Microtech Inc Dba Microtech Inc).

What NSN replaces 5985-00-203-5866?

There are 3 known substitutes for 5985-00-203-5866: 5365-01-234-2414, 5999-01-488-6057, 3020-01-503-3584. Verify interchangeability with system specifications before substitution.

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