PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203809Seal,waveguide

Microwave Engineering Corporation · NSN 5985-00-068-8851 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-068-8851 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-068-8851. Primary manufacturer part number: 203809.
Features
  • Seal,waveguide — FSC 5985
  • FSC Application Data: ANTENNAS,WAVEGUIDE AND RELATED EQUIPMENT
  • 4 verified cross-references
  • Primary manufacturer: Microwave Engineering Corporation
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,waveguide, cataloged under National Stock Number 5985-00-068-8851, 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 Microwave Engineering Corporation. Government technical data includes 1 verified specification, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-068-8851
Primary Part Number203809
Item NameSeal,waveguide
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerMicrowave Engineering Corporation
StatusACTIVE
FSC Application DataANTENNAS,WAVEGUIDE AND RELATED EQUIPMENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4820-00-106-7325 INTERCHANGEABLE
Pinion
5330-00-454-965425800 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5820-01-430-8997203809 INTERCHANGEABLE
Installation Kit,electronic Equi
Andrew Llc
5330-01-587-4995109293 INTERCHANGEABLE
Packing,preformed
Mobile Cylinders Inc
5340-01-619-8499109293 INTERCHANGEABLE
Deflector,dirt and Liquid
Hamilton Jet, Inc.
Cross-Reference Index
Part NumberManufacturer
109293 Litton Systems Inc Airtron Div (USA)
203809 Ward Leonard Ct Llc (USA)
203809 PRIMARY Microwave Engineering Corporation (USA)
109293 Frontgrade Technologies Inc. (USA)
Related Parts
4820-00-106-7325INTERCHANGEABLE
PINION
5330-00-454-9654INTERCHANGEABLE
GASKET
25800
5820-01-430-8997INTERCHANGEABLE
INSTALLATION KIT,ELECTRONIC EQUI
203809
5330-01-587-4995INTERCHANGEABLE
PACKING,PREFORMED
109293
5340-01-619-8499INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
109293

Frequently Asked Questions

What is NSN 5985-00-068-8851?

NSN 5985-00-068-8851 is a Seal,waveguide, manufactured by Microwave Engineering Corporation, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-068-8851?

NSN 5985-00-068-8851 has 4 cross-referenced part numbers: 109293 (Litton Systems Inc Airtron Div), 203809 (Ward Leonard Ct Llc), 203809 (Microwave Engineering Corporation), 109293 (Frontgrade Technologies Inc.).

What NSN replaces 5985-00-068-8851?

There are 5 known substitutes for 5985-00-068-8851: 4820-00-106-7325, 5330-00-454-9654, 5820-01-430-8997 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 203809?

Key specifications for 203809: FSC Application Data: ANTENNAS,WAVEGUIDE AND RELATED EQUIPMENT. 1 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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