PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

200421-1Waveguide Assembly

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5985-01-237-8766 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-237-8766 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-237-8766. Primary manufacturer part number: 200421-1.
Features
  • Waveguide Assembly — FSC 5985
  • Flange Style: CONTACT TYPE ALL FLANGES
  • Waveguide Outside Width: 3.234 INCHES MINIMUM AND 3.242 INCHES MAXIMUM IN
  • Flange Outside Height: 3.000 INCHES NOMINAL ALL FLANGES IN
  • Flange Depth: 0.688 INCHES NOMINAL ALL FLANGES IN
  • Flange Quantity: 2
  • Tubing Wall Construction Style: SEAMLESS ALL TUBING SEGMENT
  • Flexibility: RIGID ALL TUBING SEGMENT
Applications
  • Applications requiring Aluminum All Tubing Segment and Flange construction
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-01-237-8766, 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. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-237-8766
Primary Part Number200421-1
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Flange StyleCONTACT TYPE ALL FLANGES
Waveguide Outside Width3.234 INCHES MINIMUM AND 3.242 INCHES MAXIMUM IN
Flange Outside Height3.000 INCHES NOMINAL ALL FLANGES IN
Flange Depth0.688 INCHES NOMINAL ALL FLANGES IN
Flange Quantity2
Tubing Wall Construction StyleSEAMLESS ALL TUBING SEGMENT
FlexibilityRIGID ALL TUBING SEGMENT
Flange Inside Width2.838 INCHES MINIMUM AND 2.842 INCHES MAXIMUM ALL FLANGES IN
Waveguide Outside Height1.733 INCHES MINIMUM AND 1.743 INCHES MAXIMUM IN
Flange Outside Width4.500 INCHES NOMINAL ALL FLANGES IN
Flange Inside Height1.338 INCHES MINIMUM AND 1.342 INCHES MAXIMUM ALL FLANGES IN
Waveguide Inside Width2.835 INCHES MINIMUM AND 2.845 INCHES MAXIMUM IN
Waveguide Inside Height1.335 INCHES MINIMUM AND 1.345 INCHES MAXIMUM IN
Style DesignatorDOUBLE BEND TYPE
Waveguide Center to Center Distance6.940 INCHES MINIMUM AND 7.060 INCHES MAXIMUM IN
Waveguide Height3.327 INCHES MINIMUM AND 3.412 INCHES MAXIMUM IN
MaterialALUMINUM ALL TUBING SEGMENT AND FLANGE
Flange Connecting Hole Diameter0.256 INCHES MINIMUM AND 0.263 INCHES MAXIMUM ALL FLANGES ALL CONNECTION FACILITIES IN
Flange Connecting Facility and Quantity10 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
Cross-Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5340-01-528-18831000-000 INTERCHANGEABLE
Cap-Plug,protective,dust and Moi
Florida Aeronautics, Inc Dba Florida Aeronautics, Inc
Cross-Reference Index
Part NumberManufacturer
200421-1 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
5340-01-528-1883INTERCHANGEABLE
CAP-PLUG,PROTECTIVE,DUST AND MOI
1000-000

Frequently Asked Questions

What is NSN 5985-01-237-8766?

NSN 5985-01-237-8766 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 5985-01-237-8766?

NSN 5985-01-237-8766 has 1 cross-referenced part number: 200421-1 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 5985-01-237-8766?

There is 1 known substitute for 5985-01-237-8766: 5340-01-528-1883. Verify interchangeability with system specifications before substitution.

What are the specifications of 200421-1?

Key specifications for 200421-1: Flange Style: CONTACT TYPE ALL FLANGES; Waveguide Outside Width: 3.234 INCHES MINIMUM AND 3.242 INCHES MAXIMUM IN; Flange Outside Height: 3.000 INCHES NOMINAL ALL FLANGES IN; Flange Depth: 0.688 INCHES NOMINAL ALL FLANGES IN. 20 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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