PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

218561Waveguide Assembly

Microtech Inc Dba Microtech Inc · NSN 5985-00-303-8088 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-303-8088 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-303-8088. Primary manufacturer part number: 218561.
Features
  • Waveguide Assembly — FSC 5985
  • Style Designator: STRAIGHT TYPE
  • Flexibility: FLEXIBLE SINGLE TUBING SEGMENT
  • Flange Quantity: 2
  • Insertion Loss in Decibels: 0.27
  • Voltage Standing Wave Ratio: 1.25
  • Waveguide Length: 3.000 FEET NOMINAL FT
  • 2 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Waveguide Assembly, cataloged under National Stock Number 5985-00-303-8088, 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 Microtech Inc Dba Microtech Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-303-8088
Primary Part Number218561
Item NameWaveguide Assembly
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMicrotech Inc Dba Microtech Inc
StatusACTIVE
Style DesignatorSTRAIGHT TYPE
FlexibilityFLEXIBLE SINGLE TUBING SEGMENT
Flange Quantity2
Insertion Loss in Decibels0.27
Voltage Standing Wave Ratio1.25
Waveguide Length3.000 FEET NOMINAL FT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6210-00-231-2014 INTERCHANGEABLE
Lens,light
5999-00-928-9775 INTERCHANGEABLE
Mounting Pad,electrical-Electron
6625-01-203-9240 INTERCHANGEABLE
Ammeter
Cross-Reference Index
Part NumberManufacturer
218561 PRIMARY Microtech Inc Dba Microtech Inc (USA)
10-30505-506 The Boeing Company Div Legacy Wichita (USA)
Related Parts
6210-00-231-2014INTERCHANGEABLE
LENS,LIGHT
5999-00-928-9775INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
6625-01-203-9240INTERCHANGEABLE
AMMETER

Frequently Asked Questions

What is NSN 5985-00-303-8088?

NSN 5985-00-303-8088 is a Waveguide Assembly, manufactured by Microtech Inc Dba Microtech Inc, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-303-8088?

NSN 5985-00-303-8088 has 2 cross-referenced part numbers: 218561 (Microtech Inc Dba Microtech Inc), 10-30505-506 (The Boeing Company Div Legacy Wichita).

What NSN replaces 5985-00-303-8088?

There are 3 known substitutes for 5985-00-303-8088: 6210-00-231-2014, 5999-00-928-9775, 6625-01-203-9240. Verify interchangeability with system specifications before substitution.

What are the specifications of 218561?

Key specifications for 218561: Style Designator: STRAIGHT TYPE; Flexibility: FLEXIBLE SINGLE TUBING SEGMENT; Flange Quantity: 2; Insertion Loss in Decibels: 0.27. 6 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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